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30900774 = 235150129
BaseRepresentation
bin111010111100…
…0001000100110
32011010220220010
41311320020212
530402311044
63022151050
7523436502
oct165701046
964126803
1030900774
1116496233
12a422486
13652bca8
144165302
152aa5bb9
hex1d78226

30900774 has 8 divisors (see below), whose sum is σ = 61801560. Its totient is φ = 10300256.

The previous prime is 30900767. The next prime is 30900787. The reversal of 30900774 is 47700903.

It is a sphenic number, since it is the product of 3 distinct primes.

30900774 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2575059 + ... + 2575070.

It is an arithmetic number, because the mean of its divisors is an integer number (7725195).

Almost surely, 230900774 is an apocalyptic number.

30900774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30900774 is a wasteful number, since it uses less digits than its factorization.

30900774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150134.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 30900774 is about 5558.8464630713. The cubic root of 30900774 is about 313.8025385687.

The spelling of 30900774 in words is "thirty million, nine hundred thousand, seven hundred seventy-four".

Divisors: 1 2 3 6 5150129 10300258 15450387 30900774