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149942207 = 4113127917
BaseRepresentation
bin10001110111111…
…10111110111111
3101110010212001002
420323332332333
5301341122312
622513440515
73500326202
oct1073767677
9343125032
10149942207
1177702888
124227013b
13250ab7cc
1415cb1939
15d26c4c2
hex8efefbf

149942207 has 8 divisors (see below), whose sum is σ = 154777392. Its totient is φ = 145163200.

The previous prime is 149942201. The next prime is 149942213. The reversal of 149942207 is 702249941.

It is an interprime number because it is at equal distance from previous prime (149942201) and next prime (149942213).

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 149942207 - 214 = 149925823 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 (149942201) 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, 8588 + ... + 19329.

It is an arithmetic number, because the mean of its divisors is an integer number (19347174).

Almost surely, 2149942207 is an apocalyptic number.

149942207 is a deficient number, since it is larger than the sum of its proper divisors (4835185).

149942207 is a wasteful number, since it uses less digits than its factorization.

149942207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28089.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 149942207 is about 12245.0890972667. The cubic root of 149942207 is about 531.2610377960.

The spelling of 149942207 in words is "one hundred forty-nine million, nine hundred forty-two thousand, two hundred seven".

Divisors: 1 41 131 5371 27917 1144597 3657127 149942207