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121927164 = 22371143107
BaseRepresentation
bin1110100010001…
…11010111111100
322111102112121220
413101013113330
5222203132124
620033153340
73010235532
oct721072774
9274375556
10121927164
1162908757
12349bb850
131c350168
141229c152
15aa86879
hex74475fc

121927164 has 24 divisors (see below), whose sum is σ = 288505728. Its totient is φ = 40069680.

The previous prime is 121927159. The next prime is 121927181. The reversal of 121927164 is 461729121.

It is a happy number.

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, 70702 + ... + 72405.

It is an arithmetic number, because the mean of its divisors is an integer number (12021072).

Almost surely, 2121927164 is an apocalyptic number.

It is an amenable number.

121927164 is an abundant number, since it is smaller than the sum of its proper divisors (166578564).

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

121927164 is a wasteful number, since it uses less digits than its factorization.

121927164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143185 (or 143183 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 121927164 is about 11042.0633941306. The cubic root of 121927164 is about 495.8688464799.

The spelling of 121927164 in words is "one hundred twenty-one million, nine hundred twenty-seven thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 143107 286214 429321 572428 858642 1717284 10160597 20321194 30481791 40642388 60963582 121927164