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30707802 = 2331035521
BaseRepresentation
bin111010100100…
…1000001011010
32010210010012000
41311021001122
530330122202
63014101430
7522004056
oct165110132
963703160
1030707802
1116374254
12a34a876
1364921c8
144114c66
152a6891c
hex1d4905a

30707802 has 32 divisors (see below), whose sum is σ = 68914560. Its totient is φ = 10134720.

The previous prime is 30707773. The next prime is 30707837. The reversal of 30707802 is 20870703.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2802 + ... + 8322.

It is an arithmetic number, because the mean of its divisors is an integer number (2153580).

Almost surely, 230707802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30707802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34457280).

30707802 is an abundant number, since it is smaller than the sum of its proper divisors (38206758).

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

30707802 is a wasteful number, since it uses less digits than its factorization.

30707802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635 (or 5629 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 30707802 is about 5541.4620814366. The cubic root of 30707802 is about 313.1479530666.

The spelling of 30707802 in words is "thirty million, seven hundred seven thousand, eight hundred two".

Divisors: 1 2 3 6 9 18 27 54 103 206 309 618 927 1854 2781 5521 5562 11042 16563 33126 49689 99378 149067 298134 568663 1137326 1705989 3411978 5117967 10235934 15353901 30707802