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374242261 = 3120895779
BaseRepresentation
bin10110010011100…
…111101111010101
3222002012110212111
4112103213233111
51231301223021
6101045151021
712163002211
oct2623475725
9862173774
10374242261
11182282828
12a53bb471
135c6c3533
14379bb941
1522cc68e1
hex164e7bd5

374242261 has 8 divisors (see below), whose sum is σ = 386566400. Its totient is φ = 361933920.

The previous prime is 374242243. The next prime is 374242273. The reversal of 374242261 is 162242473.

It is a happy number.

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 374242261 - 25 = 374242229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (374246261) 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, 61870 + ... + 67648.

It is an arithmetic number, because the mean of its divisors is an integer number (48320800).

Almost surely, 2374242261 is an apocalyptic number.

374242261 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

374242261 is the 8652-nd centered decagonal number.

It is an amenable number.

374242261 is a deficient number, since it is larger than the sum of its proper divisors (12324139).

374242261 is a wasteful number, since it uses less digits than its factorization.

374242261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7899.

The product of its digits is 16128, while the sum is 31.

The square root of 374242261 is about 19345.3421008779. The cubic root of 374242261 is about 720.6387470834.

The spelling of 374242261 in words is "three hundred seventy-four million, two hundred forty-two thousand, two hundred sixty-one".

Divisors: 1 31 2089 5779 64759 179149 12072331 374242261