Search a number
-
+
72608183904 = 2535419139571
BaseRepresentation
bin100001110011111001…
…0001111011001100000
320221102012002220120110
41003213302033121200
52142200143341104
653204501211320
75150204244234
oct1034762173140
9227365086513
1072608183904
112887a477263
12120a4400b40
136b018c4639
14372b1885c4
151d4e5aae89
hex10e7c8f660

72608183904 has 48 divisors (see below), whose sum is σ = 190633020480. Its totient is φ = 24198088320.

The previous prime is 72608183887. The next prime is 72608183929. The reversal of 72608183904 is 40938180627.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 450439 + ... + 590009.

It is an arithmetic number, because the mean of its divisors is an integer number (3971521260).

Almost surely, 272608183904 is an apocalyptic number.

It is an amenable number.

72608183904 is an abundant number, since it is smaller than the sum of its proper divisors (118024836576).

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

72608183904 is a wasteful number, since it uses less digits than its factorization.

72608183904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145003 (or 144995 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 72608183904 in words is "seventy-two billion, six hundred eight million, one hundred eighty-three thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 5419 10838 16257 21676 32514 43352 65028 86704 130056 139571 173408 260112 279142 418713 520224 558284 837426 1116568 1674852 2233136 3349704 4466272 6699408 13398816 756335249 1512670498 2269005747 3025340996 4538011494 6050681992 9076022988 12101363984 18152045976 24202727968 36304091952 72608183904