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30377572 = 22172319423
BaseRepresentation
bin111001111100…
…0011001100100
32010011100012021
41303320121210
530234040242
63003032524
7516130231
oct163703144
963140167
1030377572
1116169135
12a20b744
1363a7ac4
14406a788
152a00b67
hex1cf8664

30377572 has 24 divisors (see below), whose sum is σ = 58738176. Its totient is φ = 13673088.

The previous prime is 30377539. The next prime is 30377579. The reversal of 30377572 is 27577303.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30377579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8148 + ... + 11275.

It is an arithmetic number, because the mean of its divisors is an integer number (2447424).

Almost surely, 230377572 is an apocalyptic number.

It is an amenable number.

30377572 is a deficient number, since it is larger than the sum of its proper divisors (28360604).

30377572 is a wasteful number, since it uses less digits than its factorization.

30377572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19467 (or 19465 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 34.

The square root of 30377572 is about 5511.5852529014. The cubic root of 30377572 is about 312.0213797534.

It can be divided in two parts, 3037 and 7572, that added together give a square (10609 = 1032).

The spelling of 30377572 in words is "thirty million, three hundred seventy-seven thousand, five hundred seventy-two".

Divisors: 1 2 4 17 23 34 46 68 92 391 782 1564 19423 38846 77692 330191 446729 660382 893458 1320764 1786916 7594393 15188786 30377572