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2972851788 = 223247737649
BaseRepresentation
bin1011000100110010…
…0001111001001100
321200011221111222210
42301030201321030
522042022224123
61210554310420
7133445552244
oct26114417114
97604844883
102972851788
111296108605
126ab728410
13384b9a5ca
14202b7ab24
15125ecee93
hexb1321e4c

2972851788 has 12 divisors (see below), whose sum is σ = 6936654200. Its totient is φ = 990950592.

The previous prime is 2972851787. The next prime is 2972851807. The reversal of 2972851788 is 8871582792.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2972851787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123868813 + ... + 123868836.

Almost surely, 22972851788 is an apocalyptic number.

It is an amenable number.

2972851788 is an abundant number, since it is smaller than the sum of its proper divisors (3963802412).

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

2972851788 is a wasteful number, since it uses less digits than its factorization.

2972851788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247737656 (or 247737654 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 57.

The square root of 2972851788 is about 54523.8643898248. The cubic root of 2972851788 is about 1437.8858811109.

The spelling of 2972851788 in words is "two billion, nine hundred seventy-two million, eight hundred fifty-one thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 12 247737649 495475298 743212947 990950596 1486425894 2972851788