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47673397 = 137347981
BaseRepresentation
bin1011010111011…
…1000000110101
310022201001121101
42311313000311
544201022042
64421450101
71116134332
oct265670065
9108631541
1047673397
1124a01802
1213b70931
139b52415
14648d989
1542ba6b7
hex2d77035

47673397 has 4 divisors (see below), whose sum is σ = 48021516. Its totient is φ = 47325280.

The previous prime is 47673383. The next prime is 47673467. The reversal of 47673397 is 79337674.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22982436 + 24690961 = 4794^2 + 4969^2 .

It is not a de Polignac number, because 47673397 - 215 = 47640629 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 (47673347) 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, 173854 + ... + 174127.

It is an arithmetic number, because the mean of its divisors is an integer number (12005379).

Almost surely, 247673397 is an apocalyptic number.

It is an amenable number.

47673397 is a deficient number, since it is larger than the sum of its proper divisors (348119).

47673397 is a wasteful number, since it uses less digits than its factorization.

47673397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348118.

The product of its digits is 666792, while the sum is 46.

The square root of 47673397 is about 6904.5924571983. The cubic root of 47673397 is about 362.5979682891.

The spelling of 47673397 in words is "forty-seven million, six hundred seventy-three thousand, three hundred ninety-seven".

Divisors: 1 137 347981 47673397