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30474976 = 257373677
BaseRepresentation
bin111010001000…
…0001011100000
32010100021210211
41310100023200
530300144401
63005103504
7520014220
oct164201340
963307724
1030474976
1116225334
12a257b94
13641023c
144094080
152a1e951
hex1d102e0

30474976 has 48 divisors (see below), whose sum is σ = 70441056. Its totient is φ = 12704256.

The previous prime is 30474949. The next prime is 30474989. The reversal of 30474976 is 67947403.

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, 6450 + ... + 10126.

It is an arithmetic number, because the mean of its divisors is an integer number (1467522).

Almost surely, 230474976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30474976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35220528).

30474976 is an abundant number, since it is smaller than the sum of its proper divisors (39966080).

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

30474976 is a wasteful number, since it uses less digits than its factorization.

30474976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731 (or 3723 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 30474976 is about 5520.4144771928. The cubic root of 30474976 is about 312.3545170282.

The spelling of 30474976 in words is "thirty million, four hundred seventy-four thousand, nine hundred seventy-six".

Divisors: 1 2 4 7 8 14 16 28 32 37 56 74 112 148 224 259 296 518 592 1036 1184 2072 3677 4144 7354 8288 14708 25739 29416 51478 58832 102956 117664 136049 205912 272098 411824 544196 823648 952343 1088392 1904686 2176784 3809372 4353568 7618744 15237488 30474976