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20630037120 = 2735711472969
BaseRepresentation
bin10011001101101001…
…010110001010000000
31222020202001110200220
4103031221112022000
5314222242141440
613251033143040
71330142264550
oct231551261200
958222043626
1020630037120
118827133260
123bb8b5aa80
131c3a08c374
14dd9c4b160
1580b21d8d0
hex4cda56280

20630037120 has 512 divisors, whose sum is σ = 83756851200. Its totient is φ = 4194140160.

The previous prime is 20630037107. The next prime is 20630037143. The reversal of 20630037120 is 2173003602.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 6946996 + ... + 6949964.

It is an arithmetic number, because the mean of its divisors is an integer number (163587600).

Almost surely, 220630037120 is an apocalyptic number.

20630037120 is a gapful number since it is divisible by the number (20) 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 20630037120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41878425600).

20630037120 is an abundant number, since it is smaller than the sum of its proper divisors (63126814080).

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

20630037120 is a wasteful number, since it uses less digits than its factorization.

20630037120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056 (or 3044 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The spelling of 20630037120 in words is "twenty billion, six hundred thirty million, thirty-seven thousand, one hundred twenty".