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70421180 = 2253521059
BaseRepresentation
bin1000011001010…
…00101010111100
311220111202200212
410030220222330
5121011434210
610553211552
71513366364
oct414505274
9156452625
1070421180
1136829525
121b700bb8
131178844b
1494d19a4
1562b0805
hex4328abc

70421180 has 12 divisors (see below), whose sum is σ = 147884520. Its totient is φ = 28168464.

The previous prime is 70421179. The next prime is 70421209. The reversal of 70421180 is 8112407.

It is a congruent number.

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, 1760510 + ... + 1760549.

It is an arithmetic number, because the mean of its divisors is an integer number (12323710).

Almost surely, 270421180 is an apocalyptic number.

It is an amenable number.

70421180 is an abundant number, since it is smaller than the sum of its proper divisors (77463340).

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

70421180 is a wasteful number, since it uses less digits than its factorization.

70421180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521068 (or 3521066 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 70421180 is about 8391.7328365481. The cubic root of 70421180 is about 412.9534505398.

Adding to 70421180 its reverse (8112407), we get a palindrome (78533587).

The spelling of 70421180 in words is "seventy million, four hundred twenty-one thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 3521059 7042118 14084236 17605295 35210590 70421180