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872424531 = 32118812369
BaseRepresentation
bin110100000000000…
…010010001010011
32020210121202110200
4310000002101103
53241320041111
6222323030243
730422325516
oct6400022123
92223552420
10872424531
11408508510
1220420b383
1310b990144
1483c1cd7d
15518d1256
hex34002453

872424531 has 12 divisors (see below), whose sum is σ = 1374729720. Its totient is φ = 528742080.

The previous prime is 872424529. The next prime is 872424541. The reversal of 872424531 is 135424278.

It is a happy number.

872424531 is a `hidden beast` number, since 87 + 2 + 42 + 4 + 531 = 666.

It is not a de Polignac number, because 872424531 - 21 = 872424529 is a prime.

It is a super-2 number, since 2×8724245312 = 1522249124581139922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (872424541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4406086 + ... + 4406283.

It is an arithmetic number, because the mean of its divisors is an integer number (114560810).

Almost surely, 2872424531 is an apocalyptic number.

872424531 is a deficient number, since it is larger than the sum of its proper divisors (502305189).

872424531 is a wasteful number, since it uses less digits than its factorization.

872424531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8812386 (or 8812383 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 872424531 is about 29536.8334626446. The cubic root of 872424531 is about 955.5262510789.

The spelling of 872424531 in words is "eight hundred seventy-two million, four hundred twenty-four thousand, five hundred thirty-one".

Divisors: 1 3 9 11 33 99 8812369 26437107 79311321 96936059 290808177 872424531