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149948101 = 163919927
BaseRepresentation
bin10001111000000…
…00011011000101
3101110011011010101
420330000123011
5301341314401
622513524101
73500352322
oct1074003305
9343134111
10149948101
1177707256
1242273631
13250b13b4
1415cb3b49
15d26e101
hex8f006c5

149948101 has 4 divisors (see below), whose sum is σ = 150868192. Its totient is φ = 149028012.

The previous prime is 149948093. The next prime is 149948107. The reversal of 149948101 is 101849941.

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 149948101 - 23 = 149948093 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 (149948107) 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, 459801 + ... + 460126.

It is an arithmetic number, because the mean of its divisors is an integer number (37717048).

Almost surely, 2149948101 is an apocalyptic number.

It is an amenable number.

149948101 is a deficient number, since it is larger than the sum of its proper divisors (920091).

149948101 is an equidigital number, since it uses as much as digits as its factorization.

149948101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920090.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 149948101 is about 12245.3297628116. The cubic root of 149948101 is about 531.2679987258.

The spelling of 149948101 in words is "one hundred forty-nine million, nine hundred forty-eight thousand, one hundred one".

Divisors: 1 163 919927 149948101