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61026897 = 3211229421
BaseRepresentation
bin1110100011001…
…1001001010001
311020211111011110
43220303021101
5111110330042
610020003533
71340501661
oct350631121
9136744143
1061026897
11314a2458
12185305a9
13c8494b9
1481681a1
15555709c
hex3a33251

61026897 has 16 divisors (see below), whose sum is σ = 82306880. Its totient is φ = 40219200.

The previous prime is 61026869. The next prime is 61026913. The reversal of 61026897 is 79862016.

It is not a de Polignac number, because 61026897 - 222 = 56832593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61026397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144747 + ... + 145167.

It is an arithmetic number, because the mean of its divisors is an integer number (5144180).

Almost surely, 261026897 is an apocalyptic number.

It is an amenable number.

61026897 is a deficient number, since it is larger than the sum of its proper divisors (21279983).

61026897 is a wasteful number, since it uses less digits than its factorization.

61026897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 61026897 is about 7811.9713901166. The cubic root of 61026897 is about 393.7075677127.

The spelling of 61026897 in words is "sixty-one million, twenty-six thousand, eight hundred ninety-seven".

Divisors: 1 3 211 229 421 633 687 1263 48319 88831 96409 144957 266493 289227 20342299 61026897