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61054197 = 3101201499
BaseRepresentation
bin1110100011100…
…1110011110101
311020212212121120
43220321303311
5111112213242
610020334153
71340644401
oct350716365
9136785546
1061054197
1131510a16
1218544359
13c858a59
148174101
1555601ec
hex3a39cf5

61054197 has 8 divisors (see below), whose sum is σ = 82212000. Its totient is φ = 40299600.

The previous prime is 61054183. The next prime is 61054211. The reversal of 61054197 is 79145016.

It is an interprime number because it is at equal distance from previous prime (61054183) and next prime (61054211).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61054197 - 210 = 61053173 is a prime.

It is a super-2 number, since 2×610541972 = 7455229942629618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61054127) 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, 100447 + ... + 101052.

It is an arithmetic number, because the mean of its divisors is an integer number (10276500).

Almost surely, 261054197 is an apocalyptic number.

It is an amenable number.

61054197 is a deficient number, since it is larger than the sum of its proper divisors (21157803).

61054197 is a wasteful number, since it uses less digits than its factorization.

61054197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201603.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 61054197 is about 7813.7185129745. The cubic root of 61054197 is about 393.7662664986.

The spelling of 61054197 in words is "sixty-one million, fifty-four thousand, one hundred ninety-seven".

Divisors: 1 3 101 303 201499 604497 20351399 61054197