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149202103 = 811183973
BaseRepresentation
bin10001110010010…
…10010010110111
3101101202020210211
420321022102313
5301143431403
622445530251
73461124361
oct1071122267
9341666724
10149202103
1177247826
1241b73987
1324bac98b
1415b5bd31
15d17306d
hex8e4a4b7

149202103 has 4 divisors (see below), whose sum is σ = 149386888. Its totient is φ = 149017320.

The previous prime is 149202083. The next prime is 149202107. The reversal of 149202103 is 301202941.

149202103 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-149202103 is a prime.

It is a super-2 number, since 2×1492021032 = 44522535079245218, 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 (149202107) 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, 91176 + ... + 92797.

It is an arithmetic number, because the mean of its divisors is an integer number (37346722).

Almost surely, 2149202103 is an apocalyptic number.

149202103 is a deficient number, since it is larger than the sum of its proper divisors (184785).

149202103 is an equidigital number, since it uses as much as digits as its factorization.

149202103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184784.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 149202103 is about 12214.8312718596. The cubic root of 149202103 is about 530.3855068755.

The spelling of 149202103 in words is "one hundred forty-nine million, two hundred two thousand, one hundred three".

Divisors: 1 811 183973 149202103