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68198130100 = 22521468346447
BaseRepresentation
bin111111100000111011…
…001110000110110100
320112000211210222001101
4333200323032012310
52104132210130400
651155122335444
74633004353432
oct774073160664
9215024728041
1068198130100
1126a170805a1
12112734ba584
13657b051449
14342d5b3d52
151b9233856a
hexfe0ece1b4

68198130100 has 36 divisors (see below), whose sum is σ = 148003207744. Its totient is φ = 27276806880.

The previous prime is 68198130097. The next prime is 68198130101. The reversal of 68198130100 is 103189186.

It is a self number, because there is not a number n which added to its sum of digits gives 68198130100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68198130101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1445077 + ... + 1491523.

Almost surely, 268198130100 is an apocalyptic number.

It is an amenable number.

68198130100 is an abundant number, since it is smaller than the sum of its proper divisors (79805077644).

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

68198130100 is a wasteful number, since it uses less digits than its factorization.

68198130100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61144 (or 61137 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 68198130100 in words is "sixty-eight billion, one hundred ninety-eight million, one hundred thirty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 14683 29366 46447 58732 73415 92894 146830 185788 232235 293660 367075 464470 734150 928940 1161175 1468300 2322350 4644700 681981301 1363962602 2727925204 3409906505 6819813010 13639626020 17049532525 34099065050 68198130100