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168854452 = 221312132677
BaseRepresentation
bin10100001000010…
…00001110110100
3102202201200202121
422010020032310
5321211320302
624431045324
74120145014
oct1204101664
9382650677
10168854452
118734a938
1248670844
1328ca0aa0
14185d5c44
15ec55e37
hexa1083b4

168854452 has 24 divisors (see below), whose sum is σ = 318607016. Its totient is φ = 77839488.

The previous prime is 168854437. The next prime is 168854461. The reversal of 168854452 is 254458861.

It can be written as a sum of positive squares in 4 ways, for example, as 27815076 + 141039376 = 5274^2 + 11876^2 .

It is a junction number, because it is equal to n+sod(n) for n = 168854399 and 168854408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61738 + ... + 64414.

Almost surely, 2168854452 is an apocalyptic number.

It is an amenable number.

168854452 is a deficient number, since it is larger than the sum of its proper divisors (149752564).

168854452 is a wasteful number, since it uses less digits than its factorization.

168854452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907 (or 3905 counting only the distinct ones).

The product of its digits is 307200, while the sum is 43.

The square root of 168854452 is about 12994.4007941882. The cubic root of 168854452 is about 552.7187174155.

The spelling of 168854452 in words is "one hundred sixty-eight million, eight hundred fifty-four thousand, four hundred fifty-two".

Divisors: 1 2 4 13 26 52 1213 2426 2677 4852 5354 10708 15769 31538 34801 63076 69602 139204 3247201 6494402 12988804 42213613 84427226 168854452