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120295040 = 2751011861
BaseRepresentation
bin1110010101110…
…00111010000000
322101100121202212
413022320322000
5221243420130
615534201252
72660330255
oct712707200
9271317685
10120295040
11619a3498
1234353228
131bbcb2c8
1411d9542c
15a862e95
hex72b8e80

120295040 has 64 divisors (see below), whose sum is σ = 290583720. Its totient is φ = 47616000.

The previous prime is 120295027. The next prime is 120295051. The reversal of 120295040 is 40592021.

It can be written as a sum of positive squares in 4 ways, for example, as 87759424 + 32535616 = 9368^2 + 5704^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 120294997 and 120295015.

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, 63710 + ... + 65570.

Almost surely, 2120295040 is an apocalyptic number.

120295040 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 120295040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145291860).

120295040 is an abundant number, since it is smaller than the sum of its proper divisors (170288680).

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

120295040 is a wasteful number, since it uses less digits than its factorization.

120295040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 120295040 is about 10967.9095546964. The cubic root of 120295040 is about 493.6463235824.

The spelling of 120295040 in words is "one hundred twenty million, two hundred ninety-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 101 128 160 202 320 404 505 640 808 1010 1616 1861 2020 3232 3722 4040 6464 7444 8080 9305 12928 14888 16160 18610 29776 32320 37220 59552 64640 74440 119104 148880 187961 238208 297760 375922 595520 751844 939805 1191040 1503688 1879610 3007376 3759220 6014752 7518440 12029504 15036880 24059008 30073760 60147520 120295040