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69860661 = 3135997313
BaseRepresentation
bin1000010100111…
…11110100110101
311212110021210220
410022133310311
5120341020121
610533204553
71505543253
oct412376465
9155407726
1069860661
1136486392
121b490759
1311620290
1493c75d3
1561ee6c6
hex429fd35

69860661 has 32 divisors (see below), whose sum is σ = 103393920. Its totient is φ = 41693184.

The previous prime is 69860641. The next prime is 69860671. The reversal of 69860661 is 16606896.

It is not a de Polignac number, because 69860661 - 27 = 69860533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69860641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223041 + ... + 223353.

It is an arithmetic number, because the mean of its divisors is an integer number (3231060).

Almost surely, 269860661 is an apocalyptic number.

It is an amenable number.

69860661 is a deficient number, since it is larger than the sum of its proper divisors (33533259).

69860661 is a wasteful number, since it uses less digits than its factorization.

69860661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 69860661 is about 8358.2690193604. The cubic root of 69860661 is about 411.8548932075.

The spelling of 69860661 in words is "sixty-nine million, eight hundred sixty thousand, six hundred sixty-one".

Divisors: 1 3 13 39 59 97 177 291 313 767 939 1261 2301 3783 4069 5723 12207 17169 18467 30361 55401 74399 91083 223197 240071 394693 720213 1184079 1791299 5373897 23286887 69860661