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68697500 = 225427479
BaseRepresentation
bin1000001100000…
…11110110011100
311210021012020212
410012003312130
5120041310000
610452231552
71462630154
oct406036634
9153235225
1068697500
11358614a3
121b00b5b8
1311303a11
1491a3764
15606ec35
hex4183d9c

68697500 has 30 divisors (see below), whose sum is σ = 150233160. Its totient is φ = 27478000.

The previous prime is 68697479. The next prime is 68697511. The reversal of 68697500 is 579686.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11240 + ... + 16239.

It is an arithmetic number, because the mean of its divisors is an integer number (5007772).

Almost surely, 268697500 is an apocalyptic number.

It is an amenable number.

68697500 is an abundant number, since it is smaller than the sum of its proper divisors (81535660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68697500 is a wasteful number, since it uses less digits than its factorization.

68697500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27503 (or 27486 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 68697500 is about 8288.3955021464. The cubic root of 68697500 is about 409.5563314931.

The spelling of 68697500 in words is "sixty-eight million, six hundred ninety-seven thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 625 1250 2500 27479 54958 109916 137395 274790 549580 686975 1373950 2747900 3434875 6869750 13739500 17174375 34348750 68697500