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61426351 = 721253599
BaseRepresentation
bin1110101001010…
…0101010101111
311021120210010001
43222110222233
5111211120401
610032325131
71344054400
oct352245257
9137523101
1061426351
1131745588
12186a37a7
13c95926c
14822d9a7
1555d5601
hex3a94aaf

61426351 has 6 divisors (see below), whose sum is σ = 71455200. Its totient is φ = 52651116.

The previous prime is 61426349. The next prime is 61426357. The reversal of 61426351 is 15362416.

It is not a de Polignac number, because 61426351 - 21 = 61426349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61426357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626751 + ... + 626848.

It is an arithmetic number, because the mean of its divisors is an integer number (11909200).

Almost surely, 261426351 is an apocalyptic number.

61426351 is a deficient number, since it is larger than the sum of its proper divisors (10028849).

61426351 is a wasteful number, since it uses less digits than its factorization.

61426351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253613 (or 1253606 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 61426351 is about 7837.4964752783. The cubic root of 61426351 is about 394.5647098256.

Adding to 61426351 its reverse (15362416), we get a palindrome (76788767).

The spelling of 61426351 in words is "sixty-one million, four hundred twenty-six thousand, three hundred fifty-one".

Divisors: 1 7 49 1253599 8775193 61426351