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20694702 = 237492731
BaseRepresentation
bin100111011110…
…0011010101110
31102221101210110
41032330122232
520244212302
62015320450
7340621260
oct116743256
942841713
1020694702
1110755266
126b20126
1343976b2
142a69b30
151c3bb6c
hex13bc6ae

20694702 has 16 divisors (see below), whose sum is σ = 47302272. Its totient is φ = 5912760.

The previous prime is 20694691. The next prime is 20694703. The reversal of 20694702 is 20749602.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20694702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20694703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246324 + ... + 246407.

It is an arithmetic number, because the mean of its divisors is an integer number (2956392).

Almost surely, 220694702 is an apocalyptic number.

20694702 is an abundant number, since it is smaller than the sum of its proper divisors (26607570).

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

20694702 is a wasteful number, since it uses less digits than its factorization.

20694702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492743.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20694702 is about 4549.1429962137. The cubic root of 20694702 is about 274.5489111619.

The spelling of 20694702 in words is "twenty million, six hundred ninety-four thousand, seven hundred two".

Divisors: 1 2 3 6 7 14 21 42 492731 985462 1478193 2956386 3449117 6898234 10347351 20694702