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68212044 = 223570177
BaseRepresentation
bin1000001000011…
…01010101001100
311202100112100000
410010031111030
5114430241134
610434004300
71455535635
oct404152514
9152315300
1068212044
113555a79a
121aa16690
1311193a74
1490b888c
155ec5e99
hex410d54c

68212044 has 36 divisors (see below), whose sum is σ = 178813544. Its totient is φ = 22737024.

The previous prime is 68212037. The next prime is 68212073. The reversal of 68212044 is 44021286.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 68211999 and 68212017.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34117 + ... + 36060.

Almost surely, 268212044 is an apocalyptic number.

It is an amenable number.

68212044 is an abundant number, since it is smaller than the sum of its proper divisors (110601500).

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

68212044 is a wasteful number, since it uses less digits than its factorization.

68212044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70196 (or 70182 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 68212044 is about 8259.0582998306. The cubic root of 68212044 is about 408.5893300014.

The spelling of 68212044 in words is "sixty-eight million, two hundred twelve thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 70177 140354 210531 280708 421062 631593 842124 1263186 1894779 2526372 3789558 5684337 7579116 11368674 17053011 22737348 34106022 68212044