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23151247080 = 233513236071063
BaseRepresentation
bin10101100011111010…
…111111111011101000
32012202110011012120120
4111203322333323220
5334403204401310
614345135323240
71446465232113
oct254372777350
965673135516
1023151247080
119900303655
1245a1380520
13224c506890
141198a1d57a
15907738b70
hex563ebfee8

23151247080 has 256 divisors, whose sum is σ = 78250475520. Its totient is φ = 5436896256.

The previous prime is 23151247079. The next prime is 23151247081. The reversal of 23151247080 is 8074215132.

It is an interprime number because it is at equal distance from previous prime (23151247079) and next prime (23151247081).

It is not an unprimeable number, because it can be changed into a prime (23151247081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21778629 + ... + 21779691.

It is an arithmetic number, because the mean of its divisors is an integer number (305665920).

Almost surely, 223151247080 is an apocalyptic number.

23151247080 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 23151247080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39125237760).

23151247080 is an abundant number, since it is smaller than the sum of its proper divisors (55099228440).

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

23151247080 is a wasteful number, since it uses less digits than its factorization.

23151247080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 23151247080 in words is "twenty-three billion, one hundred fifty-one million, two hundred forty-seven thousand, eighty".