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142521043145640 = 23352947871368569
BaseRepresentation
bin100000011001111101000100…
…001001100101001110101000
3200200121212201112200122212020
4200121331010021211032220
5122140031044021130030
61223041132514544440
742006543211330365
oct4031750411451650
9620555645618766
10142521043145640
1141458920381285
1213b99648b98120
13616a8a4932bb3
14272a0aba2546c
15117247571d510
hex819f442653a8

142521043145640 has 128 divisors (see below), whose sum is σ = 451717466688000. Its totient is φ = 35914326898688.

The previous prime is 142521043145627. The next prime is 142521043145683. The reversal of 142521043145640 is 46541340125241.

It is a junction number, because it is equal to n+sod(n) for n = 142521043145592 and 142521043145601.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435520725 + ... + 435847844.

It is an arithmetic number, because the mean of its divisors is an integer number (3529042708500).

Almost surely, 2142521043145640 is an apocalyptic number.

142521043145640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142521043145640 is an abundant number, since it is smaller than the sum of its proper divisors (309196423542360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142521043145640 is a wasteful number, since it uses less digits than its factorization.

142521043145640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871368659 (or 871368655 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 142521043145640 in words is "one hundred forty-two trillion, five hundred twenty-one billion, forty-three million, one hundred forty-five thousand, six hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 29 30 40 47 58 60 87 94 116 120 141 145 174 188 232 235 282 290 348 376 435 470 564 580 696 705 870 940 1128 1160 1363 1410 1740 1880 2726 2820 3480 4089 5452 5640 6815 8178 10904 13630 16356 20445 27260 32712 40890 54520 81780 163560 871368569 1742737138 2614105707 3485474276 4356842845 5228211414 6970948552 8713685690 10456422828 13070528535 17427371380 20912845656 25269688501 26141057070 34854742760 40954322743 50539377002 52282114140 75809065503 81908645486 101078754004 104564228280 122862968229 126348442505 151618131006 163817290972 202157508008 204771613715 245725936458 252696885010 303236262012 327634581944 379045327515 409543227430 491451872916 505393770020 606472524024 614314841145 758090655030 819086454860 982903745832 1010787540040 1187675359547 1228629682290 1516181310060 1638172909720 2375350719094 2457259364580 3032362620120 3563026078641 4750701438188 4914518729160 5938376797735 7126052157282 9501402876376 11876753595470 14252104314564 17815130393205 23753507190940 28504208629128 35630260786410 47507014381880 71260521572820 142521043145640