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9970987148 = 2220599121013
BaseRepresentation
bin10010100100101000…
…10011000010001100
3221201220011121222022
421102110103002030
5130410033042043
64325224505312
7502042664243
oct112224230214
927656147868
109970987148
1142573a9251
121b2331b238
13c2b99c8c5
146a836d95a
153d557b868
hex25251308c

9970987148 has 12 divisors (see below), whose sum is σ = 17450218800. Its totient is φ = 4985210352.

The previous prime is 9970987141. The next prime is 9970987151. The reversal of 9970987148 is 8417890799.

It is not an unprimeable number, because it can be changed into a prime (9970987141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21890 + ... + 142902.

It is an arithmetic number, because the mean of its divisors is an integer number (1454184900).

Almost surely, 29970987148 is an apocalyptic number.

It is an amenable number.

9970987148 is a deficient number, since it is larger than the sum of its proper divisors (7479231652).

9970987148 is a wasteful number, since it uses less digits than its factorization.

9970987148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141616 (or 141614 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 62.

The square root of 9970987148 is about 99854.8303688910. The cubic root of 9970987148 is about 2152.3491286333.

The spelling of 9970987148 in words is "nine billion, nine hundred seventy million, nine hundred eighty-seven thousand, one hundred forty-eight".

Divisors: 1 2 4 20599 41198 82396 121013 242026 484052 2492746787 4985493574 9970987148