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61455041 = 431429187
BaseRepresentation
bin1110101001101…
…1101011000001
311021122020110122
43222123223001
5111213030131
610033110025
71344234134
oct352335301
9137566418
1061455041
113176509a
12186b8315
13c96933b
14823a21b
1555ddd7b
hex3a9bac1

61455041 has 4 divisors (see below), whose sum is σ = 62884272. Its totient is φ = 60025812.

The previous prime is 61455001. The next prime is 61455047. The reversal of 61455041 is 14055416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-61455041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61455041.

It is not an unprimeable number, because it can be changed into a prime (61455047) 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, 714551 + ... + 714636.

It is an arithmetic number, because the mean of its divisors is an integer number (15721068).

Almost surely, 261455041 is an apocalyptic number.

It is an amenable number.

61455041 is a deficient number, since it is larger than the sum of its proper divisors (1429231).

61455041 is a wasteful number, since it uses less digits than its factorization.

61455041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429230.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 61455041 is about 7839.3265654647. The cubic root of 61455041 is about 394.6261291752.

It can be divided in two parts, 614 and 55041, that added together give a palindrome (55655).

The spelling of 61455041 in words is "sixty-one million, four hundred fifty-five thousand, forty-one".

Divisors: 1 43 1429187 61455041