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72991034114 = 2177130236551
BaseRepresentation
bin100001111111010011…
…0101100101100000010
320222101212111201022212
41003332212230230002
52143441201042424
653310455102122
75162533360505
oct1037646545402
9228355451285
1072991034114
1128a56599299
1212190671942
136b6300cc1b
143765d6713c
151d72ed310e
hex10fe9acb02

72991034114 has 16 divisors (see below), whose sum is σ = 117559714176. Its totient is φ = 33864936000.

The previous prime is 72991034093. The next prime is 72991034117. The reversal of 72991034114 is 41143019927.

It is a super-2 number, since 2×729910341142 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72991034117) 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, 15115862 + ... + 15120689.

It is an arithmetic number, because the mean of its divisors is an integer number (7347482136).

Almost surely, 272991034114 is an apocalyptic number.

72991034114 is a deficient number, since it is larger than the sum of its proper divisors (44568680062).

72991034114 is a wasteful number, since it uses less digits than its factorization.

72991034114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30236641.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 72991034114 in words is "seventy-two billion, nine hundred ninety-one million, thirty-four thousand, one hundred fourteen".

Divisors: 1 2 17 34 71 142 1207 2414 30236551 60473102 514021367 1028042734 2146795121 4293590242 36495517057 72991034114