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145142496 = 2533315419
BaseRepresentation
bin10001010011010…
…11001011100000
3101010010000002000
420221223023200
5244124024441
622222524000
73411455652
oct1051531340
9333100060
10145142496
1174a24784
1240736600
13240bac45
14153c26d2
15cb202b6
hex8a6b2e0

145142496 has 96 divisors (see below), whose sum is σ = 437068800. Its totient is φ = 46811520.

The previous prime is 145142483. The next prime is 145142497. The reversal of 145142496 is 694241541.

145142496 is a `hidden beast` number, since 145 + 1 + 424 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1451424962 = 42132688290220032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 145142496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145142497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24075 + ... + 29493.

It is an arithmetic number, because the mean of its divisors is an integer number (4552800).

Almost surely, 2145142496 is an apocalyptic number.

145142496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145142496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218534400).

145142496 is an abundant number, since it is smaller than the sum of its proper divisors (291926304).

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

145142496 is a wasteful number, since it uses less digits than its factorization.

145142496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5469 (or 5455 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 145142496 is about 12047.5099501930. The cubic root of 145142496 is about 525.5308263670.

The spelling of 145142496 in words is "one hundred forty-five million, one hundred forty-two thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 54 62 72 93 96 108 124 144 186 216 248 279 288 372 432 496 558 744 837 864 992 1116 1488 1674 2232 2976 3348 4464 5419 6696 8928 10838 13392 16257 21676 26784 32514 43352 48771 65028 86704 97542 130056 146313 167989 173408 195084 260112 292626 335978 390168 503967 520224 585252 671956 780336 1007934 1170504 1343912 1511901 1560672 2015868 2341008 2687824 3023802 4031736 4535703 4682016 5375648 6047604 8063472 9071406 12095208 16126944 18142812 24190416 36285624 48380832 72571248 145142496