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1381464524 = 221131396921
BaseRepresentation
bin101001001010111…
…0111100111001100
310120021110200001202
41102111313213030
510312123331044
6345025325032
746143153236
oct12225674714
93507420052
101381464524
11649889820
12326796778
1319028bb3b
14d1689256
1581432c4e
hex525779cc

1381464524 has 12 divisors (see below), whose sum is σ = 2637341448. Its totient is φ = 627938400.

The previous prime is 1381464457. The next prime is 1381464529. The reversal of 1381464524 is 4254641831.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1381464529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15698417 + ... + 15698504.

It is an arithmetic number, because the mean of its divisors is an integer number (219778454).

Almost surely, 21381464524 is an apocalyptic number.

It is an amenable number.

1381464524 is a deficient number, since it is larger than the sum of its proper divisors (1255876924).

1381464524 is a wasteful number, since it uses less digits than its factorization.

1381464524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31396936 (or 31396934 counting only the distinct ones).

The product of its digits is 92160, while the sum is 38.

The square root of 1381464524 is about 37168.0578454134. The cubic root of 1381464524 is about 1113.7299847220.

The spelling of 1381464524 in words is "one billion, three hundred eighty-one million, four hundred sixty-four thousand, five hundred twenty-four".

Divisors: 1 2 4 11 22 44 31396921 62793842 125587684 345366131 690732262 1381464524