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30739156 = 2273729671
BaseRepresentation
bin111010101000…
…0101011010100
32010211201012021
41311100223110
530332123111
63014502524
7522164350
oct165205324
963751167
1030739156
1116395868
12a364a44
1364a3566
144122460
152a72d71
hex1d50ad4

30739156 has 24 divisors (see below), whose sum is σ = 63142016. Its totient is φ = 12817440.

The previous prime is 30739151. The next prime is 30739157. The reversal of 30739156 is 65193703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30739151) 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, 13800 + ... + 15871.

Almost surely, 230739156 is an apocalyptic number.

It is an amenable number.

30739156 is an abundant number, since it is smaller than the sum of its proper divisors (32402860).

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

30739156 is a wasteful number, since it uses less digits than its factorization.

30739156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29719 (or 29717 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 30739156 is about 5544.2903964349. The cubic root of 30739156 is about 313.2544960350.

The spelling of 30739156 in words is "thirty million, seven hundred thirty-nine thousand, one hundred fifty-six".

Divisors: 1 2 4 7 14 28 37 74 148 259 518 1036 29671 59342 118684 207697 415394 830788 1097827 2195654 4391308 7684789 15369578 30739156