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42612620 = 2252130631
BaseRepresentation
bin1010001010001…
…1011110001100
32222011221112012
42202203132030
541402100440
64121200352
71025126021
oct242433614
988157465
1042612620
1122065546
12123300b8
138a9ca8b
145933548
153b1ae65
hex28a378c

42612620 has 12 divisors (see below), whose sum is σ = 89486544. Its totient is φ = 17045040.

The previous prime is 42612599. The next prime is 42612677. The reversal of 42612620 is 2621624.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065296 + ... + 1065335.

It is an arithmetic number, because the mean of its divisors is an integer number (7457212).

Almost surely, 242612620 is an apocalyptic number.

It is an amenable number.

42612620 is an abundant number, since it is smaller than the sum of its proper divisors (46873924).

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

42612620 is a wasteful number, since it uses less digits than its factorization.

42612620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130640 (or 2130638 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 42612620 is about 6527.8342503467. The cubic root of 42612620 is about 349.2845794511.

The spelling of 42612620 in words is "forty-two million, six hundred twelve thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 2130631 4261262 8522524 10653155 21306310 42612620