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42937020 = 22335737307
BaseRepresentation
bin1010001111001…
…0101010111100
32222210102112000
42203302222330
541442441040
64132142300
71030646550
oct243625274
988712460
1042937020
1122267245
1212467990
138b84629
1459b9860
153b82130
hex28f2abc

42937020 has 192 divisors, whose sum is σ = 157301760. Its totient is φ = 9517824.

The previous prime is 42936967. The next prime is 42937039. The reversal of 42937020 is 2073924.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 139707 + ... + 140013.

It is an arithmetic number, because the mean of its divisors is an integer number (819280).

Almost surely, 242937020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42937020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78650880).

42937020 is an abundant number, since it is smaller than the sum of its proper divisors (114364740).

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

42937020 is a wasteful number, since it uses less digits than its factorization.

42937020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 42937020 is about 6552.6345846537. The cubic root of 42937020 is about 350.1686805970.

The spelling of 42937020 in words is "forty-two million, nine hundred thirty-seven thousand, twenty".