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148910653 = 862917257
BaseRepresentation
bin10001110000000…
…11001000111101
3101101012110000101
420320003020331
5301110120103
622435401101
73455501563
oct1070031075
9341173011
10148910653
1177068861
1241a53191
1324b0a118
1415ac3a33
15d116a1d
hex8e0323d

148910653 has 4 divisors (see below), whose sum is σ = 148936540. Its totient is φ = 148884768.

The previous prime is 148910651. The next prime is 148910659. The reversal of 148910653 is 356019841.

148910653 is a nontrivial binomial coefficient, being equal to C(17258, 2).

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51236964 + 97673689 = 7158^2 + 9883^2 .

It is a 3-Lehmer number, since φ(148910653) divides (148910653-1)3.

It is a cyclic number.

It is not a de Polignac number, because 148910653 - 21 = 148910651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148910651) 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, 1 + ... + 17257.

It is an arithmetic number, because the mean of its divisors is an integer number (37234135).

It is a Poulet number, since it divides 2148910652-1.

Almost surely, 2148910653 is an apocalyptic number.

148910653 is the 17257-th triangular number and also the 8629-th hexagonal number.

148910653 is the 5753-rd centered nonagonal number.

It is an amenable number.

148910653 is a deficient number, since it is larger than the sum of its proper divisors (25887).

148910653 is an equidigital number, since it uses as much as digits as its factorization.

148910653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25886.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 148910653 is about 12202.8952712051. The cubic root of 148910653 is about 530.0399317249.

The spelling of 148910653 in words is "one hundred forty-eight million, nine hundred ten thousand, six hundred fifty-three".

Divisors: 1 8629 17257 148910653