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157235061290 = 25118391328111
BaseRepresentation
bin1001001001101111110…
…0001010001000101010
3120000211222111201010112
42102123330022020222
510034004133430130
6200122141014322
714234300653256
oct2223374121052
9500758451115
10157235061290
116075710284a
12265818543a2
1311a9a497308
147878619266
154153d7b495
hex249bf0a22a

157235061290 has 16 divisors (see below), whose sum is σ = 283047229440. Its totient is φ = 62888664720.

The previous prime is 157235061259. The next prime is 157235061293. The reversal of 157235061290 is 92160532751.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157235061293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545666 + ... + 782445.

It is an arithmetic number, because the mean of its divisors is an integer number (17690451840).

Almost surely, 2157235061290 is an apocalyptic number.

157235061290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157235061290 is a deficient number, since it is larger than the sum of its proper divisors (125812168150).

157235061290 is a wasteful number, since it uses less digits than its factorization.

157235061290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339957.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 157235061290 in words is "one hundred fifty-seven billion, two hundred thirty-five million, sixty-one thousand, two hundred ninety".

Divisors: 1 2 5 10 11839 23678 59195 118390 1328111 2656222 6640555 13281110 15723506129 31447012258 78617530645 157235061290