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72143079458 = 2193643521137
BaseRepresentation
bin100001100110000010…
…0000000100000100010
320220012202221011012212
41003030010000200202
52140222112020313
653050404322122
75132526025502
oct1031404004042
9226182834185
1072143079458
112866098441a
1211b946a3342
136a594398c8
1436c54b7a02
151d238373a8
hex10cc100822

72143079458 has 16 divisors (see below), whose sum is σ = 113941612320. Its totient is φ = 34163591616.

The previous prime is 72143079443. The next prime is 72143079493. The reversal of 72143079458 is 85497034127.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122135 + ... + 399002.

It is an arithmetic number, because the mean of its divisors is an integer number (7121350770).

Almost surely, 272143079458 is an apocalyptic number.

72143079458 is a deficient number, since it is larger than the sum of its proper divisors (41798532862).

72143079458 is a wasteful number, since it uses less digits than its factorization.

72143079458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524801.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 72143079458 in words is "seventy-two billion, one hundred forty-three million, seventy-nine thousand, four hundred fifty-eight".

Divisors: 1 2 19 38 3643 7286 69217 138434 521137 1042274 9901603 19803206 1898502091 3797004182 36071539729 72143079458