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7490139120 = 2433541831019
BaseRepresentation
bin1101111100111001…
…00111001111110000
3201100000000111021000
412332130213033300
5110314433422440
63235123402000
7353420063202
oct67634471760
921300014230
107490139120
1131a3a96422
121550523300
13924a178a9
14510aa6772
152dc885730
hex1be7273f0

7490139120 has 320 divisors, whose sum is σ = 26773286400. Its totient is φ = 1923287040.

The previous prime is 7490139119. The next prime is 7490139133. The reversal of 7490139120 is 219310947.

It is a super-2 number, since 2×74901391202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7349971 + ... + 7350989.

It is an arithmetic number, because the mean of its divisors is an integer number (83666520).

Almost surely, 27490139120 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 7490139120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13386643200).

7490139120 is an abundant number, since it is smaller than the sum of its proper divisors (19283147280).

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

7490139120 is a wasteful number, since it uses less digits than its factorization.

7490139120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 7490139120 is about 86545.5898356467. The cubic root of 7490139120 is about 1956.5755767833.

The spelling of 7490139120 in words is "seven billion, four hundred ninety million, one hundred thirty-nine thousand, one hundred twenty".