Search a number
-
+
47090457 = 3331127443
BaseRepresentation
bin1011001110100…
…0101100011001
310021121102222000
42303220230121
544023343312
64401151213
71111155651
oct263505431
9107542860
1047090457
1124643837
121392b509
1399a9c9b
14637b361
154202adc
hex2ce8b19

47090457 has 32 divisors (see below), whose sum is σ = 72744960. Its totient is φ = 30073680.

The previous prime is 47090441. The next prime is 47090497. The reversal of 47090457 is 75409074.

It is a happy number.

47090457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47090457 - 24 = 47090441 is a prime.

It is a super-2 number, since 2×470904572 = 4435022280937698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47090497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106078 + ... + 106520.

It is an arithmetic number, because the mean of its divisors is an integer number (2273280).

Almost surely, 247090457 is an apocalyptic number.

It is an amenable number.

47090457 is a deficient number, since it is larger than the sum of its proper divisors (25654503).

47090457 is a wasteful number, since it uses less digits than its factorization.

47090457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 47090457 is about 6862.2486839228. The cubic root of 47090457 is about 361.1139799132.

The spelling of 47090457 in words is "forty-seven million, ninety thousand, four hundred fifty-seven".

Divisors: 1 3 9 27 31 93 127 279 381 443 837 1143 1329 3429 3937 3987 11811 11961 13733 35433 41199 56261 106299 123597 168783 370791 506349 1519047 1744091 5232273 15696819 47090457