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151393069 = 532856473
BaseRepresentation
bin10010000011000…
…01001100101101
3101112212120020201
421001201030231
5302224034234
623004513501
73515551132
oct1101411455
9345776221
10151393069
1178503943
124284b891
1325498cc9
141616c589
15d457314
hex906132d

151393069 has 4 divisors (see below), whose sum is σ = 154249596. Its totient is φ = 148536544.

The previous prime is 151393051. The next prime is 151393091. The reversal of 151393069 is 960393151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 960393151 = 997963283.

It can be written as a sum of positive squares in 2 ways, for example, as 39816100 + 111576969 = 6310^2 + 10563^2 .

It is a cyclic number.

It is not a de Polignac number, because 151393069 - 25 = 151393037 is a prime.

It is a super-2 number, since 2×1513930692 = 45839722682477522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151393019) 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 3 ways as a sum of consecutive naturals, for example, 1428184 + ... + 1428289.

It is an arithmetic number, because the mean of its divisors is an integer number (38562399).

Almost surely, 2151393069 is an apocalyptic number.

It is an amenable number.

151393069 is a deficient number, since it is larger than the sum of its proper divisors (2856527).

151393069 is an equidigital number, since it uses as much as digits as its factorization.

151393069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856526.

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 151393069 is about 12304.1890833976. The cubic root of 151393069 is about 532.9690595427.

The spelling of 151393069 in words is "one hundred fifty-one million, three hundred ninety-three thousand, sixty-nine".

Divisors: 1 53 2856473 151393069