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30710372 = 2271199709
BaseRepresentation
bin111010100100…
…1101001100100
32010210020201012
41311021221210
530330212442
63014121352
7522014420
oct165115144
963706635
1030710372
1116376180
12a350258
136493424
144115b80
152a69582
hex1d49a64

30710372 has 24 divisors (see below), whose sum is σ = 67005120. Its totient is φ = 11964960.

The previous prime is 30710371. The next prime is 30710401. The reversal of 30710372 is 27301703.

It is not an unprimeable number, because it can be changed into a prime (30710371) 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, 49547 + ... + 50162.

It is an arithmetic number, because the mean of its divisors is an integer number (2791880).

Almost surely, 230710372 is an apocalyptic number.

It is an amenable number.

30710372 is an abundant number, since it is smaller than the sum of its proper divisors (36294748).

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

30710372 is a wasteful number, since it uses less digits than its factorization.

30710372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99731 (or 99729 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 30710372 is about 5541.6939648450. The cubic root of 30710372 is about 313.1566888247.

The spelling of 30710372 in words is "thirty million, seven hundred ten thousand, three hundred seventy-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 99709 199418 398836 697963 1096799 1395926 2193598 2791852 4387196 7677593 15355186 30710372