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48972688520 = 2357174902459
BaseRepresentation
bin101101100110111111…
…111110110010001000
311200101222202100012112
4231212333332302020
51300244002013040
634255302401452
73352405661360
oct554677766210
9150358670175
1048972688520
11198508957a8
1295a8a30288
134805c8c502
1425281139a0
1514195bb365
hexb66ffec88

48972688520 has 32 divisors (see below), whose sum is σ = 125929771200. Its totient is φ = 16790635968.

The previous prime is 48972688493. The next prime is 48972688529. The reversal of 48972688520 is 2588627984.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 48972688520.

It is not an unprimeable number, because it can be changed into a prime (48972688529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87450950 + ... + 87451509.

It is an arithmetic number, because the mean of its divisors is an integer number (3935305350).

Almost surely, 248972688520 is an apocalyptic number.

48972688520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48972688520 is an abundant number, since it is smaller than the sum of its proper divisors (76957082680).

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

48972688520 is a wasteful number, since it uses less digits than its factorization.

48972688520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174902477 (or 174902473 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 59.

The spelling of 48972688520 in words is "forty-eight billion, nine hundred seventy-two million, six hundred eighty-eight thousand, five hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 174902459 349804918 699609836 874512295 1224317213 1399219672 1749024590 2448634426 3498049180 4897268852 6121586065 6996098360 9794537704 12243172130 24486344260 48972688520