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206972924 = 2251743231
BaseRepresentation
bin11000101011000…
…10011111111100
3112102110022110212
430111202133330
5410441113144
632312051552
75062145414
oct1425423774
9472408425
10206972924
11a6915904
1259393bb8
1333b590b2
141d6b9644
151328549e
hexc5627fc

206972924 has 6 divisors (see below), whose sum is σ = 362202624. Its totient is φ = 103486460.

The previous prime is 206972923. The next prime is 206973017. The reversal of 206972924 is 429279602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206972923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25871612 + ... + 25871619.

It is an arithmetic number, because the mean of its divisors is an integer number (60367104).

Almost surely, 2206972924 is an apocalyptic number.

It is an amenable number.

206972924 is a deficient number, since it is larger than the sum of its proper divisors (155229700).

206972924 is a wasteful number, since it uses less digits than its factorization.

206972924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51743235 (or 51743233 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 206972924 is about 14386.5535831206. The cubic root of 206972924 is about 591.5223769642.

The spelling of 206972924 in words is "two hundred six million, nine hundred seventy-two thousand, nine hundred twenty-four".

Divisors: 1 2 4 51743231 103486462 206972924