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72407811040 = 2553114598349
BaseRepresentation
bin100001101101111010…
…1111000001111100000
320220220020001220200021
41003123311320033200
52141242344423130
653132542403224
75142222144625
oct1033365701740
9226806056607
1072407811040
112878735a154
1212049290514
136a9c239706
14370c70a34c
151d3bbcb37a
hex10dbd783e0

72407811040 has 48 divisors (see below), whose sum is σ = 176581641600. Its totient is φ = 28028828160.

The previous prime is 72407811019. The next prime is 72407811061. The reversal of 72407811040 is 4011870427.

It is an interprime number because it is at equal distance from previous prime (72407811019) and next prime (72407811061).

It is a junction number, because it is equal to n+sod(n) for n = 72407810987 and 72407811005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7294215 + ... + 7304134.

It is an arithmetic number, because the mean of its divisors is an integer number (3678784200).

Almost surely, 272407811040 is an apocalyptic number.

It is an amenable number.

72407811040 is an abundant number, since it is smaller than the sum of its proper divisors (104173830560).

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

72407811040 is a wasteful number, since it uses less digits than its factorization.

72407811040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14598395 (or 14598387 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The spelling of 72407811040 in words is "seventy-two billion, four hundred seven million, eight hundred eleven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 31 32 40 62 80 124 155 160 248 310 496 620 992 1240 2480 4960 14598349 29196698 58393396 72991745 116786792 145983490 233573584 291966980 452548819 467147168 583933960 905097638 1167867920 1810195276 2262744095 2335735840 3620390552 4525488190 7240781104 9050976380 14481562208 18101952760 36203905520 72407811040