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153140693 = 236658291
BaseRepresentation
bin10010010000010…
…11110111010101
3101200011100112112
421020023313111
5303201000233
623110200405
73536450216
oct1110136725
9350140475
10153140693
1179497962
1243353105
132595b5c4
14164a540d
15d6a0048
hex920bdd5

153140693 has 4 divisors (see below), whose sum is σ = 159799008. Its totient is φ = 146482380.

The previous prime is 153140671. The next prime is 153140707. The reversal of 153140693 is 396041351.

153140693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 153140693 - 210 = 153139669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153140623) 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, 3329123 + ... + 3329168.

It is an arithmetic number, because the mean of its divisors is an integer number (39949752).

Almost surely, 2153140693 is an apocalyptic number.

It is an amenable number.

153140693 is a deficient number, since it is larger than the sum of its proper divisors (6658315).

153140693 is an equidigital number, since it uses as much as digits as its factorization.

153140693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6658314.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 153140693 is about 12375.0027474744. The cubic root of 153140693 is about 535.0120159179.

It can be divided in two parts, 1531 and 40693, that added together give a palindrome (42224).

The spelling of 153140693 in words is "one hundred fifty-three million, one hundred forty thousand, six hundred ninety-three".

Divisors: 1 23 6658291 153140693