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47380949 = 711615337
BaseRepresentation
bin1011010010111…
…1100111010101
310022011012102222
42310233213111
544112142244
64411312125
71113505610
oct264574725
9108135388
1047380949
1124822010
1213a4b645
139a7c285
146415177
15425dbee
hex2d2f9d5

47380949 has 8 divisors (see below), whose sum is σ = 59072448. Its totient is φ = 36920160.

The previous prime is 47380937. The next prime is 47380951. The reversal of 47380949 is 94908374.

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 47380949 - 224 = 30603733 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 (47380999) 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, 307592 + ... + 307745.

It is an arithmetic number, because the mean of its divisors is an integer number (7384056).

Almost surely, 247380949 is an apocalyptic number.

It is an amenable number.

47380949 is a deficient number, since it is larger than the sum of its proper divisors (11691499).

47380949 is a wasteful number, since it uses less digits than its factorization.

47380949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615355.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 47380949 is about 6883.3820902228. The cubic root of 47380949 is about 361.8550058803.

The spelling of 47380949 in words is "forty-seven million, three hundred eighty thousand, nine hundred forty-nine".

Divisors: 1 7 11 77 615337 4307359 6768707 47380949