Search a number
-
+
70975938 = 23112591657
BaseRepresentation
bin1000011101100…
…00000111000010
311221112221200110
410032300013002
5121132212223
611013132150
71521166635
oct416600702
9157487613
1070975938
1137078300
121b92a056
1311920ac7
1495d7c1c
15636ed93
hex43b01c2

70975938 has 48 divisors (see below), whose sum is σ = 158770080. Its totient is φ = 21130560.

The previous prime is 70975909. The next prime is 70975939. The reversal of 70975938 is 83957907.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70975939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42006 + ... + 43662.

It is an arithmetic number, because the mean of its divisors is an integer number (3307710).

Almost surely, 270975938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70975938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79385040).

70975938 is an abundant number, since it is smaller than the sum of its proper divisors (87794142).

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

70975938 is a wasteful number, since it uses less digits than its factorization.

70975938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743 (or 1732 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 70975938 is about 8424.7218351706. The cubic root of 70975938 is about 414.0349920247.

The spelling of 70975938 in words is "seventy million, nine hundred seventy-five thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 59 66 118 121 177 242 354 363 649 726 1298 1657 1947 3314 3894 4971 7139 9942 14278 18227 21417 36454 42834 54681 97763 109362 195526 200497 293289 400994 586578 601491 1075393 1202982 2150786 3226179 6452358 11829323 23658646 35487969 70975938