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152154497 = 1113832227
BaseRepresentation
bin10010001000110…
…11000110000001
3101121022020201202
421010123012001
5302422420442
623033110545
73525202055
oct1104330601
9347266652
10152154497
1178983a20
1242b58455
13256a4761
14162c9c65
15d557c32
hex911b181

152154497 has 4 divisors (see below), whose sum is σ = 165986736. Its totient is φ = 138322260.

The previous prime is 152154481. The next prime is 152154523. The reversal of 152154497 is 794451251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 152154497 - 24 = 152154481 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 152154497.

It is not an unprimeable number, because it can be changed into a prime (152154427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6916103 + ... + 6916124.

It is an arithmetic number, because the mean of its divisors is an integer number (41496684).

Almost surely, 2152154497 is an apocalyptic number.

It is an amenable number.

152154497 is a deficient number, since it is larger than the sum of its proper divisors (13832239).

152154497 is a wasteful number, since it uses less digits than its factorization.

152154497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13832238.

The product of its digits is 50400, while the sum is 38.

The square root of 152154497 is about 12335.0920953189. The cubic root of 152154497 is about 533.8610843281.

It can be divided in two parts, 15 and 2154497, that added together give a palindrome (2154512).

The spelling of 152154497 in words is "one hundred fifty-two million, one hundred fifty-four thousand, four hundred ninety-seven".

Divisors: 1 11 13832227 152154497