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61468018 = 230734009
BaseRepresentation
bin1110101001111…
…0110101110010
311021122220021021
43222132311302
5111213434033
610033250054
71344320023
oct352366562
9137586237
1061468018
1131773917
121870392a
13c972211
148240c4a
1555e2b2d
hex3a9ed72

61468018 has 4 divisors (see below), whose sum is σ = 92202030. Its totient is φ = 30734008.

The previous prime is 61468007. The next prime is 61468019. The reversal of 61468018 is 81086416.

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

It can be written as a sum of positive squares in only one way, i.e., 56746089 + 4721929 = 7533^2 + 2173^2 .

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (61468019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15367003 + ... + 15367006.

Almost surely, 261468018 is an apocalyptic number.

61468018 is a deficient number, since it is larger than the sum of its proper divisors (30734012).

61468018 is a wasteful number, since it uses less digits than its factorization.

61468018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30734011.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 61468018 is about 7840.1542076671. The cubic root of 61468018 is about 394.6539039667.

The spelling of 61468018 in words is "sixty-one million, four hundred sixty-eight thousand, eighteen".

Divisors: 1 2 30734009 61468018