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49612090 = 25113114549
BaseRepresentation
bin1011110101000…
…0010100111010
310110100112222211
42331100110322
5100200041330
64531205334
71141460443
oct275202472
9113315884
1049612090
1126006330
121474684a
13a380988
1468362ca
15454ed2a
hex2f5053a

49612090 has 32 divisors (see below), whose sum is σ = 100569600. Its totient is φ = 17457600.

The previous prime is 49612061. The next prime is 49612099. The reversal of 49612090 is 9021694.

It is a happy number.

49612090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×496120902 = 4922718948336200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (49612099) 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 15 ways as a sum of consecutive naturals, for example, 3865 + ... + 10684.

It is an arithmetic number, because the mean of its divisors is an integer number (3142800).

Almost surely, 249612090 is an apocalyptic number.

49612090 is an abundant number, since it is smaller than the sum of its proper divisors (50957510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49612090 is a wasteful number, since it uses less digits than its factorization.

49612090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14598.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 49612090 is about 7043.5850246874. The cubic root of 49612090 is about 367.4479602991.

The spelling of 49612090 in words is "forty-nine million, six hundred twelve thousand, ninety".

Divisors: 1 2 5 10 11 22 31 55 62 110 155 310 341 682 1705 3410 14549 29098 72745 145490 160039 320078 451019 800195 902038 1600390 2255095 4510190 4961209 9922418 24806045 49612090