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60989849 = 317421457
BaseRepresentation
bin1110100010101…
…0000110011001
311020202121100022
43220222012121
5111103133344
610015120225
71340255654
oct350520631
9136677308
1060989849
1131477638
1218513075
13c83568b
14815889b
15554b0ee
hex3a2a199

60989849 has 8 divisors (see below), whose sum is σ = 61461768. Its totient is φ = 60520320.

The previous prime is 60989843. The next prime is 60989857. The reversal of 60989849 is 94898906.

It can be written as a sum of positive squares in 4 ways, for example, as 71824 + 60918025 = 268^2 + 7805^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-60989849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60989849.

It is not an unprimeable number, because it can be changed into a prime (60989843) 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, 133229 + ... + 133685.

It is an arithmetic number, because the mean of its divisors is an integer number (7682721).

Almost surely, 260989849 is an apocalyptic number.

It is an amenable number.

60989849 is a deficient number, since it is larger than the sum of its proper divisors (471919).

60989849 is a wasteful number, since it uses less digits than its factorization.

60989849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 60989849 is about 7809.5997976849. The cubic root of 60989849 is about 393.6278813705.

The spelling of 60989849 in words is "sixty million, nine hundred eighty-nine thousand, eight hundred forty-nine".

Divisors: 1 317 421 457 133457 144869 192397 60989849