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23142131572 = 2279713276421
BaseRepresentation
bin10101100011011000…
…001110011101110100
32012201211000002110011
4111203120032131310
5334343341202242
614344212110004
71446324605230
oct254330163564
965654002404
1023142131572
1198a6147a7a
12459a305304
13224a6647a1
1411977295c0
15906a37d17
hex56360e774

23142131572 has 48 divisors (see below), whose sum is σ = 46803947008. Its totient is φ = 9806883840.

The previous prime is 23142131557. The next prime is 23142131609. The reversal of 23142131572 is 27513124132.

It is a congruent number.

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, 3600922 + ... + 3607342.

Almost surely, 223142131572 is an apocalyptic number.

It is an amenable number.

23142131572 is an abundant number, since it is smaller than the sum of its proper divisors (23661815436).

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

23142131572 is a wasteful number, since it uses less digits than its factorization.

23142131572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856 (or 7854 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The spelling of 23142131572 in words is "twenty-three billion, one hundred forty-two million, one hundred thirty-one thousand, five hundred seventy-two".

Divisors: 1 2 4 7 14 28 97 194 388 679 1327 1358 2654 2716 5308 6421 9289 12842 18578 25684 37156 44947 89894 128719 179788 257438 514876 622837 901033 1245674 1802066 2491348 3604132 4359859 8520667 8719718 17041334 17439436 34082668 59644669 119289338 238578676 826504699 1653009398 3306018796 5785532893 11571065786 23142131572