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8152719042 = 23131033101183
BaseRepresentation
bin1111001011111000…
…01001111011000010
3210001011210001001010
413211330021323002
5113144044002132
63424553021350
7406013653116
oct74574117302
923034701033
108152719042
113503aa7536
1216b63b4856
139cc084810
14574a9d746
1532ab156cc
hex1e5f09ec2

8152719042 has 32 divisors (see below), whose sum is σ = 17576875008. Its totient is φ = 2506075776.

The previous prime is 8152719023. The next prime is 8152719049. The reversal of 8152719042 is 2409172518.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (8152719049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29983 + ... + 131165.

It is an arithmetic number, because the mean of its divisors is an integer number (549277344).

Almost surely, 28152719042 is an apocalyptic number.

8152719042 is an abundant number, since it is smaller than the sum of its proper divisors (9424155966).

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

8152719042 is a wasteful number, since it uses less digits than its factorization.

8152719042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102234.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 8152719042 is about 90292.4085513284. The cubic root of 8152719042 is about 2012.6464519119.

The spelling of 8152719042 in words is "eight billion, one hundred fifty-two million, seven hundred nineteen thousand, forty-two".

Divisors: 1 2 3 6 13 26 39 78 1033 2066 3099 6198 13429 26858 40287 80574 101183 202366 303549 607098 1315379 2630758 3946137 7892274 104522039 209044078 313566117 627132234 1358786507 2717573014 4076359521 8152719042