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47691038 = 2108721937
BaseRepresentation
bin1011010111101…
…1010100011110
310022201221210202
42311323110132
544202103123
64422103502
71116236633
oct265732436
9108657722
1047691038
1124a13a8a
1213b7ab92
139b5a465
14649618a
1542c0a28
hex2d7b51e

47691038 has 8 divisors (see below), whose sum is σ = 71605632. Its totient is φ = 23822496.

The previous prime is 47691037. The next prime is 47691067. The reversal of 47691038 is 83019674.

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

It is a junction number, because it is equal to n+sod(n) for n = 47690992 and 47691010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47691031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8795 + ... + 13142.

It is an arithmetic number, because the mean of its divisors is an integer number (8950704).

Almost surely, 247691038 is an apocalyptic number.

47691038 is a deficient number, since it is larger than the sum of its proper divisors (23914594).

47691038 is a wasteful number, since it uses less digits than its factorization.

47691038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23026.

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

The square root of 47691038 is about 6905.8698221151. The cubic root of 47691038 is about 362.6426878625.

The spelling of 47691038 in words is "forty-seven million, six hundred ninety-one thousand, thirty-eight".

Divisors: 1 2 1087 2174 21937 43874 23845519 47691038