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42702712 = 23131093767
BaseRepresentation
bin1010001011100…
…1011101111000
32222100112002221
42202321131320
541412441322
64123133424
71025652463
oct242713570
988315087
1042702712
11221171a8
1212374274
138b01aa0
1459582da
153b379c7
hex28b9778

42702712 has 32 divisors (see below), whose sum is σ = 87040800. Its totient is φ = 19522944.

The previous prime is 42702707. The next prime is 42702713. The reversal of 42702712 is 21720724.

It is a super-2 number, since 2×427027122 = 3647043224309888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42702713) 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, 9453 + ... + 13219.

It is an arithmetic number, because the mean of its divisors is an integer number (2720025).

Almost surely, 242702712 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 42702712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43520400).

42702712 is an abundant number, since it is smaller than the sum of its proper divisors (44338088).

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

42702712 is a wasteful number, since it uses less digits than its factorization.

42702712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895 (or 3891 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 42702712 is about 6534.7312109987. The cubic root of 42702712 is about 349.5305597567.

The spelling of 42702712 in words is "forty-two million, seven hundred two thousand, seven hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 109 218 436 872 1417 2834 3767 5668 7534 11336 15068 30136 48971 97942 195884 391768 410603 821206 1642412 3284824 5337839 10675678 21351356 42702712