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72955330542 = 23243193488381
BaseRepresentation
bin100001111110001111…
…0011111111111101110
320222022101022210020100
41003330132133333232
52143403031034132
653303141531530
75161621035453
oct1037436377756
9228271283210
1072955330542
1128a38422706
1212180713ba6
136b587bbb53
14376131182a
151d6ecce37c
hex10fc79ffee

72955330542 has 48 divisors (see below), whose sum is σ = 162584321328. Its totient is φ = 23629777920.

The previous prime is 72955330523. The next prime is 72955330543. The reversal of 72955330542 is 24503355927.

72955330542 is a `hidden beast` number, since 7 + 29 + 5 + 53 + 30 + 542 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72955330543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94809 + ... + 393572.

It is an arithmetic number, because the mean of its divisors is an integer number (3387173361).

Almost surely, 272955330542 is an apocalyptic number.

72955330542 is an abundant number, since it is smaller than the sum of its proper divisors (89628990786).

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

72955330542 is a wasteful number, since it uses less digits than its factorization.

72955330542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488625 (or 488622 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 45.

The spelling of 72955330542 in words is "seventy-two billion, nine hundred fifty-five million, three hundred thirty thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 43 86 129 193 258 386 387 579 774 1158 1737 3474 8299 16598 24897 49794 74691 149382 488381 976762 1465143 2930286 4395429 8790858 21000383 42000766 63001149 94257533 126002298 188515066 189003447 282772599 378006894 565545198 848317797 1696635594 4053073919 8106147838 12159221757 24318443514 36477665271 72955330542