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157951225352 = 2322726192
BaseRepresentation
bin1001001100011010100…
…0000110111000001000
3120002200220002121112102
42103012220012320020
510041441003202402
6200321202532532
714261115156164
oct2230650067010
9502626077472
10157951225352
1160a94392478
1226741667148
1311b82975b2b
14790579dca4
154196b93102
hex24c6a06e08

157951225352 has 36 divisors (see below), whose sum is σ = 297950298255. Its totient is φ = 78500678736.

The previous prime is 157951225349. The next prime is 157951225387. The reversal of 157951225352 is 253522159751.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 78975612676 + 78975612676 = 281026^2 + 281026^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=281026.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157951225297 and 157951225306.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 255171299 + ... + 255171917.

Almost surely, 2157951225352 is an apocalyptic number.

It is an amenable number.

157951225352 is a deficient number, since it is larger than the sum of its proper divisors (139999072903).

157951225352 is an frugal number, since it uses more digits than its factorization.

157951225352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698 (or 848 counting only the distinct ones).

The product of its digits is 945000, while the sum is 47.

The spelling of 157951225352 in words is "one hundred fifty-seven billion, nine hundred fifty-one million, two hundred twenty-five thousand, three hundred fifty-two".

Divisors: 1 2 4 8 227 454 619 908 1238 1816 2476 4952 51529 103058 140513 206116 281026 383161 412232 562052 766322 1124104 1532644 3065288 31896451 63792902 86977547 127585804 173955094 255171608 347910188 695820376 19743903169 39487806338 78975612676 157951225352