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61472401 = 587104723
BaseRepresentation
bin1110101001111…
…1111010010001
311021200010021121
43222133322101
5111214104101
610033322241
71344335554
oct352377221
9137603247
1061472401
1131777141
1218706381
13c974203
14824269b
1555e40a1
hex3a9fe91

61472401 has 4 divisors (see below), whose sum is σ = 61577712. Its totient is φ = 61367092.

The previous prime is 61472393. The next prime is 61472417. The reversal of 61472401 is 10427416.

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 not a de Polignac number, because 61472401 - 23 = 61472393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61472461) 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, 51775 + ... + 52948.

It is an arithmetic number, because the mean of its divisors is an integer number (15394428).

Almost surely, 261472401 is an apocalyptic number.

It is an amenable number.

61472401 is a deficient number, since it is larger than the sum of its proper divisors (105311).

61472401 is a wasteful number, since it uses less digits than its factorization.

61472401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105310.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 61472401 is about 7840.4337252476. The cubic root of 61472401 is about 394.6632840585.

Adding to 61472401 its reverse (10427416), we get a palindrome (71899817).

The spelling of 61472401 in words is "sixty-one million, four hundred seventy-two thousand, four hundred one".

Divisors: 1 587 104723 61472401