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65474242 = 21710131901
BaseRepresentation
bin1111100111000…
…0111011000010
311120012102202221
43321300323002
5113230133432
610255201254
71423344001
oct371607302
9146172687
1065474242
1133a5a849
1219b1622a
1310745872
1489a4c38
155b34b97
hex3e70ec2

65474242 has 16 divisors (see below), whose sum is σ = 104145912. Its totient is φ = 30764800.

The previous prime is 65474231. The next prime is 65474249. The reversal of 65474242 is 24247456.

It can be written as a sum of positive squares in 4 ways, for example, as 27762361 + 37711881 = 5269^2 + 6141^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 65474198 and 65474207.

It is not an unprimeable number, because it can be changed into a prime (65474249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33492 + ... + 35392.

Almost surely, 265474242 is an apocalyptic number.

65474242 is a deficient number, since it is larger than the sum of its proper divisors (38671670).

65474242 is a wasteful number, since it uses less digits than its factorization.

65474242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933.

The product of its digits is 53760, while the sum is 34.

The square root of 65474242 is about 8091.6155370853. The cubic root of 65474242 is about 403.0480519518.

The spelling of 65474242 in words is "sixty-five million, four hundred seventy-four thousand, two hundred forty-two".

Divisors: 1 2 17 34 1013 1901 2026 3802 17221 32317 34442 64634 1925713 3851426 32737121 65474242