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9870838044 = 2231748386461
BaseRepresentation
bin10010011000101100…
…10000100100011100
3221110220201112020020
421030112100210130
5130203413304134
64311250152140
7466415511324
oct111426204434
927426645206
109870838044
1142059157a1
121ab5882650
13c14006292
14698d40284
153cb897b49
hex24c59091c

9870838044 has 24 divisors (see below), whose sum is σ = 24386776848. Its totient is φ = 3096733440.

The previous prime is 9870837989. The next prime is 9870838073. The reversal of 9870838044 is 4408380789.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24193027 + ... + 24193434.

It is an arithmetic number, because the mean of its divisors is an integer number (1016115702).

Almost surely, 29870838044 is an apocalyptic number.

It is an amenable number.

9870838044 is an abundant number, since it is smaller than the sum of its proper divisors (14515938804).

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

9870838044 is a wasteful number, since it uses less digits than its factorization.

9870838044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48386485 (or 48386483 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 9870838044 is about 99352.0912915274. The cubic root of 9870838044 is about 2145.1187654368.

The spelling of 9870838044 in words is "nine billion, eight hundred seventy million, eight hundred thirty-eight thousand, forty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 48386461 96772922 145159383 193545844 290318766 580637532 822569837 1645139674 2467709511 3290279348 4935419022 9870838044