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30740976 = 2432730497
BaseRepresentation
bin111010101000…
…1000111110000
32010211210200200
41311101013300
530332202401
63014515200
7522202560
oct165210760
963753620
1030740976
1116397172
12a365b00
1364a4336
144122da0
152a73686
hex1d511f0

30740976 has 60 divisors (see below), whose sum is σ = 98325552. Its totient is φ = 8782848.

The previous prime is 30740971. The next prime is 30740987. The reversal of 30740976 is 67904703.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 30740976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30740971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14241 + ... + 16256.

Almost surely, 230740976 is an apocalyptic number.

30740976 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30740976 is an abundant number, since it is smaller than the sum of its proper divisors (67584576).

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

30740976 is a wasteful number, since it uses less digits than its factorization.

30740976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30518 (or 30509 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 30740976 is about 5544.4545268223. The cubic root of 30740976 is about 313.2606782903.

The spelling of 30740976 in words is "thirty million, seven hundred forty thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 30497 60994 91491 121988 182982 213479 243976 274473 365964 426958 487952 548946 640437 731928 853916 1097892 1280874 1463856 1707832 1921311 2195784 2561748 3415664 3842622 4391568 5123496 7685244 10246992 15370488 30740976