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68213032 = 2323370723
BaseRepresentation
bin1000001000011…
…01100100101000
311202100120200121
410010031210220
5114430304112
610434013024
71455541546
oct404154450
9152316617
1068213032
1135560508
121aa17174
1311194354
1490b8d96
155ec6407
hex410d928

68213032 has 16 divisors (see below), whose sum is σ = 133460640. Its totient is φ = 32623536.

The previous prime is 68212997. The next prime is 68213039. The reversal of 68213032 is 23031286.

It is a junction number, because it is equal to n+sod(n) for n = 68212988 and 68213006.

It is not an unprimeable number, because it can be changed into a prime (68213039) 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, 185178 + ... + 185545.

It is an arithmetic number, because the mean of its divisors is an integer number (8341290).

Almost surely, 268213032 is an apocalyptic number.

It is an amenable number.

68213032 is a deficient number, since it is larger than the sum of its proper divisors (65247608).

68213032 is a wasteful number, since it uses less digits than its factorization.

68213032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370752 (or 370748 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 68213032 is about 8259.1181127285. The cubic root of 68213032 is about 408.5913026946.

The spelling of 68213032 in words is "sixty-eight million, two hundred thirteen thousand, thirty-two".

Divisors: 1 2 4 8 23 46 92 184 370723 741446 1482892 2965784 8526629 17053258 34106516 68213032