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72314430144 = 2631134239787
BaseRepresentation
bin100001101011001000…
…1101010001011000000
320220122201100200011120
41003112101222023000
52141044443231034
653115405112240
75140006341255
oct1032621521300
9226581320146
1072314430144
1128739679760
1212021b58680
136a85aa2948
14370015d42c
151d338d2c49
hex10d646a2c0

72314430144 has 56 divisors (see below), whose sum is σ = 208725747648. Its totient is φ = 21913463040.

The previous prime is 72314430137. The next prime is 72314430211. The reversal of 72314430144 is 44103441327.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 17117782 + ... + 17122005.

Almost surely, 272314430144 is an apocalyptic number.

It is an amenable number.

72314430144 is an abundant number, since it is smaller than the sum of its proper divisors (136411317504).

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

72314430144 is a wasteful number, since it uses less digits than its factorization.

72314430144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34239813 (or 34239803 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The spelling of 72314430144 in words is "seventy-two billion, three hundred fourteen million, four hundred thirty thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 132 176 192 264 352 528 704 1056 2112 34239787 68479574 102719361 136959148 205438722 273918296 376637657 410877444 547836592 753275314 821754888 1095673184 1129912971 1506550628 1643509776 2191346368 2259825942 3013101256 3287019552 4519651884 6026202512 6574039104 9039303768 12052405024 18078607536 24104810048 36157215072 72314430144