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19151452152 = 23327613112003
BaseRepresentation
bin10001110101100000…
…111111011111111000
31211102200211120102200
4101311200333133320
5303210232432102
612444214030200
71245406441320
oct216540773770
954380746380
1019151452152
11813854a508
123865948360
131a62957611
14cd9720280
1577150451c
hex47583f7f8

19151452152 has 192 divisors, whose sum is σ = 60473986560. Its totient is φ = 5362156800.

The previous prime is 19151452127. The next prime is 19151452157. The reversal of 19151452152 is 25125415191.

19151452152 is a `hidden beast` number, since 1 + 9 + 1 + 51 + 452 + 152 = 666.

It is a super-2 number, since 2×191514521522 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19151452157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9560383 + ... + 9562385.

It is an arithmetic number, because the mean of its divisors is an integer number (314968680).

Almost surely, 219151452152 is an apocalyptic number.

19151452152 is a gapful number since it is divisible by the number (12) 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 19151452152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30236993280).

19151452152 is an abundant number, since it is smaller than the sum of its proper divisors (41322534408).

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

19151452152 is a wasteful number, since it uses less digits than its factorization.

19151452152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394 (or 2387 counting only the distinct ones).

The product of its digits is 18000, while the sum is 36.

The spelling of 19151452152 in words is "nineteen billion, one hundred fifty-one million, four hundred fifty-two thousand, one hundred fifty-two".