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121839088 = 24731492
BaseRepresentation
bin1110100001100…
…01110111110000
322111021001210211
413100301313300
5222142322323
620031233504
73006421000
oct720616760
9274231724
10121839088
1162858568
1234978894
131c31c047
1412278000
15aa6a70d
hex7431df0

121839088 has 60 divisors (see below), whose sum is σ = 277152400. Its totient is φ = 51866304.

The previous prime is 121839061. The next prime is 121839097. The reversal of 121839088 is 880938121.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a self number, because there is not a number n which added to its sum of digits gives 121839088.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 817638 + ... + 817786.

Almost surely, 2121839088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121839088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138576200).

121839088 is an abundant number, since it is smaller than the sum of its proper divisors (155313312).

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

121839088 is an frugal number, since it uses more digits than its factorization.

121839088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 121839088 is about 11038.0744697615. The cubic root of 121839088 is about 495.7494181711.

The spelling of 121839088 in words is "one hundred twenty-one million, eight hundred thirty-nine thousand, eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 149 196 298 343 392 596 686 784 1043 1192 1372 2086 2384 2744 4172 5488 7301 8344 14602 16688 22201 29204 44402 51107 58408 88804 102214 116816 155407 177608 204428 310814 355216 408856 621628 817712 1087849 1243256 2175698 2486512 4351396 7614943 8702792 15229886 17405584 30459772 60919544 121839088