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30381702 = 23131273067
BaseRepresentation
bin111001111100…
…1011010000110
32010011112212020
41303321122012
530234203302
63003104010
7516145251
oct163713206
963145766
1030381702
111617124a
12a212006
1363a9950
14406c098
152a01ebc
hex1cf9686

30381702 has 32 divisors (see below), whose sum is σ = 65974272. Its totient is φ = 9271584.

The previous prime is 30381649. The next prime is 30381707. The reversal of 30381702 is 20718303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30381707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8373 + ... + 11439.

It is an arithmetic number, because the mean of its divisors is an integer number (2061696).

Almost surely, 230381702 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30381702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32987136).

30381702 is an abundant number, since it is smaller than the sum of its proper divisors (35592570).

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

30381702 is a wasteful number, since it uses less digits than its factorization.

30381702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 30381702 is about 5511.9599055146. The cubic root of 30381702 is about 312.0355194604.

The spelling of 30381702 in words is "thirty million, three hundred eighty-one thousand, seven hundred two".

Divisors: 1 2 3 6 13 26 39 78 127 254 381 762 1651 3067 3302 4953 6134 9201 9906 18402 39871 79742 119613 239226 389509 779018 1168527 2337054 5063617 10127234 15190851 30381702