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72625806420480 = 2938547197467
BaseRepresentation
bin10000100000110110000011…
…011001001010101000000000
3100112010221220022122200000000
4100200312003121022220000
534004400122420423410
6414243500200000000
721204020120654445
oct2040660331125000
9315127808580000
1072625806420480
1121160482412135
12818b44b760000
13316a779522161
1413d1171a9d9cc
1585e26d207dc0
hex420d8364aa00

72625806420480 has 1440 divisors, whose sum is σ = 268669518264576. Its totient is φ = 18818220589056.

The previous prime is 72625806420467. The next prime is 72625806420589. The reversal of 72625806420480 is 8402460852627.

72625806420480 is a `hidden beast` number, since 7 + 2 + 6 + 2 + 5 + 80 + 64 + 20 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 155515645207 + ... + 155515645673.

Almost surely, 272625806420480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72625806420480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134334759132288).

72625806420480 is an abundant number, since it is smaller than the sum of its proper divisors (196043711844096).

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

72625806420480 is an frugal number, since it uses more digits than its factorization.

72625806420480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 54.

The spelling of 72625806420480 in words is "seventy-two trillion, six hundred twenty-five billion, eight hundred six million, four hundred twenty thousand, four hundred eighty".