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1972972308801 = 31361829328419
BaseRepresentation
bin11100101101011110010…
…100000100100101000001
320222121120211110212202010
4130231132110010211001
5224311121402340201
64110212043443133
7262354043630364
oct34553624044501
96877524425663
101972972308801
116a080748440a
1227a4605264a9
13114086c096a0
146b6c70c00db
15364c52c7bd6
hex1cb5e504941

1972972308801 has 16 divisors (see below), whose sum is σ = 2879428274240. Its totient is φ = 1194232921920.

The previous prime is 1972972308799. The next prime is 1972972308803. The reversal of 1972972308801 is 1088032792791.

It is an interprime number because it is at equal distance from previous prime (1972972308799) and next prime (1972972308803).

It is not a de Polignac number, because 1972972308801 - 21 = 1972972308799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1972972308803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414661831 + ... + 414666588.

It is an arithmetic number, because the mean of its divisors is an integer number (179964267140).

Almost surely, 21972972308801 is an apocalyptic number.

It is an amenable number.

1972972308801 is a deficient number, since it is larger than the sum of its proper divisors (906455965439).

1972972308801 is a wasteful number, since it uses less digits than its factorization.

1972972308801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829328496.

The product of its (nonzero) digits is 3048192, while the sum is 57.

The spelling of 1972972308801 in words is "one trillion, nine hundred seventy-two billion, nine hundred seventy-two million, three hundred eight thousand, eight hundred one".

Divisors: 1 3 13 39 61 183 793 2379 829328419 2487985257 10781269447 32343808341 50589033559 151767100677 657657436267 1972972308801