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60197813 = 134630601
BaseRepresentation
bin1110010110100…
…0101110110101
311012021100212122
43211220232311
5110402312223
65550125325
71330446554
oct345505665
9135240778
1060197813
1130a86565
12181b0845
13c619010
147dcdd9b
1554415c8
hex3968bb5

60197813 has 4 divisors (see below), whose sum is σ = 64828428. Its totient is φ = 55567200.

The previous prime is 60197803. The next prime is 60197821. The reversal of 60197813 is 31879106.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10608049 + 49589764 = 3257^2 + 7042^2 .

It is not a de Polignac number, because 60197813 - 26 = 60197749 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 (60197803) 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, 2315288 + ... + 2315313.

It is an arithmetic number, because the mean of its divisors is an integer number (16207107).

Almost surely, 260197813 is an apocalyptic number.

It is an amenable number.

60197813 is a deficient number, since it is larger than the sum of its proper divisors (4630615).

60197813 is a wasteful number, since it uses less digits than its factorization.

60197813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630614.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 60197813 is about 7758.7249596825. The cubic root of 60197813 is about 391.9165209056.

The spelling of 60197813 in words is "sixty million, one hundred ninety-seven thousand, eight hundred thirteen".

Divisors: 1 13 4630601 60197813