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164215342 = 2172925743
BaseRepresentation
bin10011100100110…
…11101000101110
3102110000000002201
421302123220232
5314014342332
624143412114
74032543634
oct1162335056
9373000081
10164215342
1184771465
1246bb403a
1328038355
1417b49354
15e63b5e7
hex9c9ba2e

164215342 has 24 divisors (see below), whose sum is σ = 270163296. Its totient is φ = 74600064.

The previous prime is 164215333. The next prime is 164215343. The reversal of 164215342 is 243512461.

It is a self number, because there is not a number n which added to its sum of digits gives 164215342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164215343) 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, 25723 + ... + 31465.

It is an arithmetic number, because the mean of its divisors is an integer number (11256804).

Almost surely, 2164215342 is an apocalyptic number.

164215342 is a deficient number, since it is larger than the sum of its proper divisors (105947954).

164215342 is a wasteful number, since it uses less digits than its factorization.

164215342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820 (or 5791 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 164215342 is about 12814.6534092811. The cubic root of 164215342 is about 547.6098395862.

The spelling of 164215342 in words is "one hundred sixty-four million, two hundred fifteen thousand, three hundred forty-two".

Divisors: 1 2 17 29 34 58 493 841 986 1682 5743 11486 14297 28594 97631 166547 195262 333094 2831299 4829863 5662598 9659726 82107671 164215342