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30296231 = 753127643
BaseRepresentation
bin111001110010…
…0100010100111
32010000012121122
41303210202213
530223434411
63001204155
7515341130
oct163444247
963005548
1030296231
1116113009
12a19065b
136379a84
144048c87
1529d69db
hex1ce48a7

30296231 has 16 divisors (see below), whose sum is σ = 35610624. Its totient is φ = 25238304.

The previous prime is 30296191. The next prime is 30296251. The reversal of 30296231 is 13269203.

It is a de Polignac number, because none of the positive numbers 2k-30296231 is a prime.

It is a super-2 number, since 2×302962312 = 1835723225610722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30296231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30296251) 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 15 ways as a sum of consecutive naturals, for example, 46796 + ... + 47438.

It is an arithmetic number, because the mean of its divisors is an integer number (2225664).

Almost surely, 230296231 is an apocalyptic number.

30296231 is a deficient number, since it is larger than the sum of its proper divisors (5314393).

30296231 is a wasteful number, since it uses less digits than its factorization.

30296231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 30296231 is about 5504.2012136186. The cubic root of 30296231 is about 311.7426344345.

The spelling of 30296231 in words is "thirty million, two hundred ninety-six thousand, two hundred thirty-one".

Divisors: 1 7 53 127 371 643 889 4501 6731 34079 47117 81661 238553 571627 4328033 30296231