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151990272 = 2123271931
BaseRepresentation
bin10010000111100…
…11000000000000
3101120222220110100
421003303000000
5302402142042
623025402400
73523616220
oct1103630000
9346886410
10151990272
11788815a5
1242a99400
1325647a95
1416286080
15d52424c
hex90f3000

151990272 has 312 divisors, whose sum is σ = 545192960. Its totient is φ = 39813120.

The previous prime is 151990271. The next prime is 151990283. The reversal of 151990272 is 272099151.

151990272 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (151990271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4902897 + ... + 4902927.

Almost surely, 2151990272 is an apocalyptic number.

151990272 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 151990272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272596480).

151990272 is an abundant number, since it is smaller than the sum of its proper divisors (393202688).

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

151990272 is a wasteful number, since it uses less digits than its factorization.

151990272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 151990272 is about 12328.4334771292. The cubic root of 151990272 is about 533.6689443211.

The spelling of 151990272 in words is "one hundred fifty-one million, nine hundred ninety thousand, two hundred seventy-two".