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164153238 = 23373791951
BaseRepresentation
bin10011100100011…
…00011110010110
3102102212211220120
421302030132112
5314010400423
624142212410
74032164604
oct1162143626
9372784816
10164153238
1184729837
1246b84106
1328015cc2
1417b30874
15e627ee3
hex9c8c796

164153238 has 32 divisors (see below), whose sum is σ = 338242560. Its totient is φ = 53071200.

The previous prime is 164153233. The next prime is 164153279. The reversal of 164153238 is 832351461.

164153238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 164153199 and 164153208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164153233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83163 + ... + 85113.

It is an arithmetic number, because the mean of its divisors is an integer number (10570080).

Almost surely, 2164153238 is an apocalyptic number.

164153238 is an abundant number, since it is smaller than the sum of its proper divisors (174089322).

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

164153238 is a wasteful number, since it uses less digits than its factorization.

164153238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372.

The product of its digits is 17280, while the sum is 33.

The square root of 164153238 is about 12812.2300166677. The cubic root of 164153238 is about 547.5407980273.

The spelling of 164153238 in words is "one hundred sixty-four million, one hundred fifty-three thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 37 74 111 222 379 758 1137 1951 2274 3902 5853 11706 14023 28046 42069 72187 84138 144374 216561 433122 739429 1478858 2218287 4436574 27358873 54717746 82076619 164153238