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72300492 = 22331160859
BaseRepresentation
bin1000100111100…
…11011111001100
312001001020122000
410103303133030
5122002103432
611101352300
71535354415
oct423633714
9161036560
1072300492
11378a2480
1220268690
1311c95974
14986080c
15653257c
hex44f37cc

72300492 has 48 divisors (see below), whose sum is σ = 204489600. Its totient is φ = 21908880.

The previous prime is 72300469. The next prime is 72300493. The reversal of 72300492 is 29400327.

It is a super-2 number, since 2×723004922 = 10454722286884128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (72300493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29242 + ... + 31617.

It is an arithmetic number, because the mean of its divisors is an integer number (4260200).

Almost surely, 272300492 is an apocalyptic number.

It is an amenable number.

72300492 is an abundant number, since it is smaller than the sum of its proper divisors (132189108).

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

72300492 is a wasteful number, since it uses less digits than its factorization.

72300492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60883 (or 60875 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 72300492 is about 8502.9695989107. The cubic root of 72300492 is about 416.5947099919.

The spelling of 72300492 in words is "seventy-two million, three hundred thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 132 198 297 396 594 1188 60859 121718 182577 243436 365154 547731 669449 730308 1095462 1338898 1643193 2008347 2190924 2677796 3286386 4016694 6025041 6572772 8033388 12050082 18075123 24100164 36150246 72300492