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30474340 = 22513117209
BaseRepresentation
bin111010001000…
…0000001100100
32010100020221021
41310100001210
530300134330
63005100524
7520012321
oct164200144
963306837
1030474340
1116224906
12a257744
13640cb70
144093b48
152a1e67a
hex1d10064

30474340 has 24 divisors (see below), whose sum is σ = 68919480. Its totient is φ = 11251968.

The previous prime is 30474337. The next prime is 30474343. The reversal of 30474340 is 4347403.

It is an interprime number because it is at equal distance from previous prime (30474337) and next prime (30474343).

It can be written as a sum of positive squares in 4 ways, for example, as 268324 + 30206016 = 518^2 + 5496^2 .

It is not an unprimeable number, because it can be changed into a prime (30474343) 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, 58345 + ... + 58864.

It is an arithmetic number, because the mean of its divisors is an integer number (2871645).

Almost surely, 230474340 is an apocalyptic number.

It is an amenable number.

30474340 is an abundant number, since it is smaller than the sum of its proper divisors (38445140).

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

30474340 is a wasteful number, since it uses less digits than its factorization.

30474340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117231 (or 117229 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 30474340 is about 5520.3568725219. The cubic root of 30474340 is about 312.3523441104.

The spelling of 30474340 in words is "thirty million, four hundred seventy-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 117209 234418 468836 586045 1172090 1523717 2344180 3047434 6094868 7618585 15237170 30474340