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120404880 = 24345171093
BaseRepresentation
bin1110010110100…
…11101110010000
322101120012110000
413023103232100
5221310424010
615540410000
72661265431
oct713235620
9271505400
10120404880
1161a68a72
12343a6900
131bc392bb
1411dc3488
15a8857c0
hex72d3b90

120404880 has 200 divisors, whose sum is σ = 443188152. Its totient is φ = 30191616.

The previous prime is 120404873. The next prime is 120404917. The reversal of 120404880 is 88404021.

It can be written as a sum of positive squares in 4 ways, for example, as 62157456 + 58247424 = 7884^2 + 7632^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 109614 + ... + 110706.

Almost surely, 2120404880 is an apocalyptic number.

120404880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120404880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221594076).

120404880 is an abundant number, since it is smaller than the sum of its proper divisors (322783272).

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

120404880 is a wasteful number, since it uses less digits than its factorization.

120404880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 120404880 is about 10972.9157474210. The cubic root of 120404880 is about 493.7965254454.

The spelling of 120404880 in words is "one hundred twenty million, four hundred four thousand, eight hundred eighty".