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72046995960 = 2335971618323
BaseRepresentation
bin100001100011001010…
…1011110100111111000
320212222002010121102210
41003012111132213320
52140023012332320
653033053055120
75130251234622
oct1030625364770
9225862117383
1072046995960
1128611718475
1211b684874a0
136a42567974
1436b6825c12
151d1a1a80e0
hex10c655e9f8

72046995960 has 64 divisors (see below), whose sum is σ = 216363934080. Its totient is φ = 19192714880.

The previous prime is 72046995941. The next prime is 72046995961. The reversal of 72046995960 is 6959964027.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 72046995960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72046995961) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 192642 + ... + 425681.

It is an arithmetic number, because the mean of its divisors is an integer number (3380686470).

Almost surely, 272046995960 is an apocalyptic number.

It is an amenable number.

72046995960 is an abundant number, since it is smaller than the sum of its proper divisors (144316938120).

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

72046995960 is a wasteful number, since it uses less digits than its factorization.

72046995960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619308 (or 619304 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 72046995960 in words is "seventy-two billion, forty-six million, nine hundred ninety-five thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 971 1942 2913 3884 4855 5826 7768 9710 11652 14565 19420 23304 29130 38840 58260 116520 618323 1236646 1854969 2473292 3091615 3709938 4946584 6183230 7419876 9274845 12366460 14839752 18549690 24732920 37099380 74198760 600391633 1200783266 1801174899 2401566532 3001958165 3602349798 4803133064 6003916330 7204699596 9005874495 12007832660 14409399192 18011748990 24015665320 36023497980 72046995960