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380900761 = 2927747417
BaseRepresentation
bin10110101101000…
…001010110011001
3222112201202121121
4112231001112121
51240002311021
6101444005241
712303413563
oct2655012631
9875652547
10380900761
1118601041a
12a7690821
1360bb5187
1438832333
152368e741
hex16b41599

380900761 has 8 divisors (see below), whose sum is σ = 395466120. Its totient is φ = 366430848.

The previous prime is 380900743. The next prime is 380900797. The reversal of 380900761 is 167009083.

It can be written as a sum of positive squares in 4 ways, for example, as 65536 + 380835225 = 256^2 + 19515^2 .

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 380900761 - 213 = 380892569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380900731) 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, 15676 + ... + 31741.

It is an arithmetic number, because the mean of its divisors is an integer number (49433265).

Almost surely, 2380900761 is an apocalyptic number.

It is an amenable number.

380900761 is a deficient number, since it is larger than the sum of its proper divisors (14565359).

380900761 is a wasteful number, since it uses less digits than its factorization.

380900761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47723.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 380900761 is about 19516.6790463952. The cubic root of 380900761 is about 724.8875043844.

The spelling of 380900761 in words is "three hundred eighty million, nine hundred thousand, seven hundred sixty-one".

Divisors: 1 29 277 8033 47417 1375093 13134509 380900761