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149880461 = 417350077
BaseRepresentation
bin10001110111011…
…11111010001101
3101110000201100012
420323233322031
5301332133321
622512243005
73466651163
oct1073577215
9343021305
10149880461
1177670455
1242240465
1325089683
1415c97233
15d25905b
hex8eefe8d

149880461 has 8 divisors (see below), whose sum is σ = 155642424. Its totient is φ = 144218880.

The previous prime is 149880431. The next prime is 149880463. The reversal of 149880461 is 164088941.

It can be written as a sum of positive squares in 4 ways, for example, as 15760900 + 134119561 = 3970^2 + 11581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149880461 - 218 = 149618317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149880463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22046 + ... + 28031.

It is an arithmetic number, because the mean of its divisors is an integer number (19455303).

Almost surely, 2149880461 is an apocalyptic number.

It is an amenable number.

149880461 is a deficient number, since it is larger than the sum of its proper divisors (5761963).

149880461 is an equidigital number, since it uses as much as digits as its factorization.

149880461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50191.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 149880461 is about 12242.5675820066. The cubic root of 149880461 is about 531.1881035891.

The spelling of 149880461 in words is "one hundred forty-nine million, eight hundred eighty thousand, four hundred sixty-one".

Divisors: 1 41 73 2993 50077 2053157 3655621 149880461