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151401289 = 1322950857
BaseRepresentation
bin10010000011000…
…11001101001001
3101112212222112011
421001203031021
5302224320124
623005015521
73515614114
oct1101431511
9345788464
10151401289
117850a036
12428545a1
132549c980
141617157b
15d459994
hex9063349

151401289 has 8 divisors (see below), whose sum is σ = 163762760. Its totient is φ = 139142016.

The previous prime is 151401287. The next prime is 151401317. The reversal of 151401289 is 982104151.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4579600 + 146821689 = 2140^2 + 12117^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 151401289 - 21 = 151401287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151401289.

It is not an unprimeable number, because it can be changed into a prime (151401287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22452 + ... + 28405.

It is an arithmetic number, because the mean of its divisors is an integer number (20470345).

Almost surely, 2151401289 is an apocalyptic number.

It is an amenable number.

151401289 is a deficient number, since it is larger than the sum of its proper divisors (12361471).

151401289 is a wasteful number, since it uses less digits than its factorization.

151401289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51099.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 151401289 is about 12304.5231114416. The cubic root of 151401289 is about 532.9787053528.

The spelling of 151401289 in words is "one hundred fifty-one million, four hundred one thousand, two hundred eighty-nine".

Divisors: 1 13 229 2977 50857 661141 11646253 151401289