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47878234 = 226988993
BaseRepresentation
bin1011011010100…
…1000001011010
310100002110120221
42312221001122
544224100414
64430110254
71120646455
oct266510132
9110073527
1047878234
1125031698
121404b38a
139bc4721
14650449c
15430b224
hex2da905a

47878234 has 8 divisors (see below), whose sum is σ = 72085140. Its totient is φ = 23849856.

The previous prime is 47878231. The next prime is 47878247. The reversal of 47878234 is 43287874.

It can be written as a sum of positive squares in 2 ways, for example, as 47817225 + 61009 = 6915^2 + 247^2 .

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

It is not an unprimeable number, because it can be changed into a prime (47878231) 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, 43959 + ... + 45034.

Almost surely, 247878234 is an apocalyptic number.

47878234 is a deficient number, since it is larger than the sum of its proper divisors (24206906).

47878234 is a wasteful number, since it uses less digits than its factorization.

47878234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89264.

The product of its digits is 301056, while the sum is 43.

The square root of 47878234 is about 6919.4099459419. The cubic root of 47878234 is about 363.1165479136.

The spelling of 47878234 in words is "forty-seven million, eight hundred seventy-eight thousand, two hundred thirty-four".

Divisors: 1 2 269 538 88993 177986 23939117 47878234