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30989643013120 = 2105111793073979
BaseRepresentation
bin1110000101111010101101…
…01010011101110000000000
311001201120200111121201220111
413002331112222131300000
513030213242102404440
6145524240115321104
76345633146246221
oct702752652356000
9131646614551814
1030989643013120
1199686a7645460
1235860008b0194
13143a406a8918c
14791c9a0a5248
1538b1a21684ea
hex1c2f56a9dc00

30989643013120 has 176 divisors, whose sum is σ = 81549984297600. Its totient is φ = 11206002360320.

The previous prime is 30989643013111. The next prime is 30989643013139. The reversal of 30989643013120 is 2131034698903.

It is a tau number, because it is divible by the number of its divisors (176).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8544291 + ... + 11618269.

Almost surely, 230989643013120 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 30989643013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40774992148800).

30989643013120 is an abundant number, since it is smaller than the sum of its proper divisors (50560341284480).

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

30989643013120 is a wasteful number, since it uses less digits than its factorization.

30989643013120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074194 (or 3074176 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 30989643013120 in words is "thirty trillion, nine hundred eighty-nine billion, six hundred forty-three million, thirteen thousand, one hundred twenty".