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30465631 = 729150077
BaseRepresentation
bin111010000110…
…1111001011111
32010022210222201
41310031321133
530244400011
63004552331
7516645040
oct164157137
963283881
1030465631
1116219309
12a2526a7
136408c01
1440908c7
152a1bcc1
hex1d0de5f

30465631 has 8 divisors (see below), whose sum is σ = 36018720. Its totient is φ = 25212768.

The previous prime is 30465623. The next prime is 30465661. The reversal of 30465631 is 13656403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30465631 - 23 = 30465623 is a prime.

It is a super-2 number, since 2×304656312 = 1856309344456322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30465631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30465661) 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, 74836 + ... + 75241.

It is an arithmetic number, because the mean of its divisors is an integer number (4502340).

Almost surely, 230465631 is an apocalyptic number.

30465631 is a deficient number, since it is larger than the sum of its proper divisors (5553089).

30465631 is a wasteful number, since it uses less digits than its factorization.

30465631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150113.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 30465631 is about 5519.5680084586. The cubic root of 30465631 is about 312.3225864439.

The spelling of 30465631 in words is "thirty million, four hundred sixty-five thousand, six hundred thirty-one".

Divisors: 1 7 29 203 150077 1050539 4352233 30465631