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157630023340 = 2257881501167
BaseRepresentation
bin1001001011001101111…
…0110100011010101100
3120001212111200212012121
42102303132310122230
510040311241221330
6200225250242324
714250135043156
oct2226336643254
9501774625177
10157630023340
116093a047669
1226671b863a4
1311b3126377a
1478b4c6bad6
15417889717a
hex24b37b46ac

157630023340 has 12 divisors (see below), whose sum is σ = 331023049056. Its totient is φ = 63052009328.

The previous prime is 157630023319. The next prime is 157630023347. The reversal of 157630023340 is 43320036751.

It is a junction number, because it is equal to n+sod(n) for n = 157630023296 and 157630023305.

It is not an unprimeable number, because it can be changed into a prime (157630023347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3940750564 + ... + 3940750603.

It is an arithmetic number, because the mean of its divisors is an integer number (27585254088).

Almost surely, 2157630023340 is an apocalyptic number.

157630023340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157630023340 is an abundant number, since it is smaller than the sum of its proper divisors (173393025716).

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

157630023340 is a wasteful number, since it uses less digits than its factorization.

157630023340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7881501176 (or 7881501174 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 34.

The spelling of 157630023340 in words is "one hundred fifty-seven billion, six hundred thirty million, twenty-three thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 7881501167 15763002334 31526004668 39407505835 78815011670 157630023340