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30705374 = 272975629
BaseRepresentation
bin111010100100…
…0011011011110
32010202222212002
41311020123132
530330032444
63014042302
7521664020
oct165103336
963688762
1030705374
1116372447
12a349392
13649107b
144114010
152a67d4e
hex1d486de

30705374 has 16 divisors (see below), whose sum is σ = 54453600. Its totient is φ = 12705504.

The previous prime is 30705371. The next prime is 30705379. The reversal of 30705374 is 47350703.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30705371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37409 + ... + 38220.

It is an arithmetic number, because the mean of its divisors is an integer number (3403350).

Almost surely, 230705374 is an apocalyptic number.

30705374 is a deficient number, since it is larger than the sum of its proper divisors (23748226).

30705374 is a wasteful number, since it uses less digits than its factorization.

30705374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75667.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 30705374 is about 5541.2430013491. The cubic root of 30705374 is about 313.1396995369.

The spelling of 30705374 in words is "thirty million, seven hundred five thousand, three hundred seventy-four".

Divisors: 1 2 7 14 29 58 203 406 75629 151258 529403 1058806 2193241 4386482 15352687 30705374