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30392936 = 2372233371
BaseRepresentation
bin111001111110…
…0001001101000
32010012010021022
41303330021220
530240033221
63003232012
7516223100
oct163741150
963163238
1030392936
1116179732
12a218608
1363b1ab2
144072200
152a054ab
hex1cfc268

30392936 has 48 divisors (see below), whose sum is σ = 69193440. Its totient is φ = 12455520.

The previous prime is 30392933. The next prime is 30392939. The reversal of 30392936 is 63929303.

It is an interprime number because it is at equal distance from previous prime (30392933) and next prime (30392939).

It is a junction number, because it is equal to n+sod(n) for n = 30392896 and 30392905.

It is not an unprimeable number, because it can be changed into a prime (30392933) 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 11 ways as a sum of consecutive naturals, for example, 7331 + ... + 10701.

It is an arithmetic number, because the mean of its divisors is an integer number (1441530).

Almost surely, 230392936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30392936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34596720).

30392936 is an abundant number, since it is smaller than the sum of its proper divisors (38800504).

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

30392936 is a wasteful number, since it uses less digits than its factorization.

30392936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414 (or 3403 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 35.

The square root of 30392936 is about 5512.9788680894. The cubic root of 30392936 is about 312.0739743508.

It can be divided in two parts, 303 and 92936, that added together give a palindrome (93239).

The spelling of 30392936 in words is "thirty million, three hundred ninety-two thousand, nine hundred thirty-six".

Divisors: 1 2 4 7 8 14 23 28 46 49 56 92 98 161 184 196 322 392 644 1127 1288 2254 3371 4508 6742 9016 13484 23597 26968 47194 77533 94388 155066 165179 188776 310132 330358 542731 620264 660716 1085462 1321432 2170924 3799117 4341848 7598234 15196468 30392936