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145604044940 = 22517439959237
BaseRepresentation
bin1000011110011010101…
…1010110100010001100
3111220211101200212012012
42013212223112202030
54341144113414230
6150520052000352
713343126650514
oct2074653264214
9456741625165
10145604044940
1156828762042
12242766000b8
1310965904613
147093a0a844
153bc2be4395
hex21e6ad688c

145604044940 has 48 divisors (see below), whose sum is σ = 331284092832. Its totient is φ = 53540852736.

The previous prime is 145604044931. The next prime is 145604044979. The reversal of 145604044940 is 49440406541.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4964999 + ... + 4994238.

It is an arithmetic number, because the mean of its divisors is an integer number (6901751934).

Almost surely, 2145604044940 is an apocalyptic number.

145604044940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145604044940 is an abundant number, since it is smaller than the sum of its proper divisors (185680047892).

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

145604044940 is a wasteful number, since it uses less digits than its factorization.

145604044940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9959306 (or 9959304 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 145604044940 in words is "one hundred forty-five billion, six hundred four million, forty-four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 17 20 34 43 68 85 86 170 172 215 340 430 731 860 1462 2924 3655 7310 14620 9959237 19918474 39836948 49796185 99592370 169307029 199184740 338614058 428247191 677228116 846535145 856494382 1693070290 1712988764 2141235955 3386140580 4282471910 7280202247 8564943820 14560404494 29120808988 36401011235 72802022470 145604044940