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47975915258 = 223987957629
BaseRepresentation
bin101100101011100101…
…100101111011111010
311120211112011000100022
4230223211211323322
51241223313242013
634012334210442
73315613360025
oct545345457372
9146745130308
1047975915258
111938a176247
12936b053a22
1346a7611c4b
1424719a61bc
1513abd26008
hexb2b965efa

47975915258 has 4 divisors (see below), whose sum is σ = 71963872890. Its totient is φ = 23987957628.

The previous prime is 47975915231. The next prime is 47975915261. The reversal of 47975915258 is 85251957974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85251957974 = 242625978987.

It can be written as a sum of positive squares in only one way, i.e., 30816749209 + 17159166049 = 175547^2 + 130993^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47975915258.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11993978813 + ... + 11993978816.

Almost surely, 247975915258 is an apocalyptic number.

47975915258 is a deficient number, since it is larger than the sum of its proper divisors (23987957632).

47975915258 is a wasteful number, since it uses less digits than its factorization.

47975915258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23987957631.

The product of its digits is 31752000, while the sum is 62.

The spelling of 47975915258 in words is "forty-seven billion, nine hundred seventy-five million, nine hundred fifteen thousand, two hundred fifty-eight".

Divisors: 1 2 23987957629 47975915258