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1489707420 = 223524828457
BaseRepresentation
bin101100011001011…
…0010000110011100
310211211010222101220
41120302302012130
511022331114140
6403453333340
751626206215
oct13062620634
93754128356
101489707420
116a49a0263
12356a97250
131a982a4a6
14101bc440c
158abb4bd0
hex58cb219c

1489707420 has 24 divisors (see below), whose sum is σ = 4171180944. Its totient is φ = 397255296.

The previous prime is 1489707397. The next prime is 1489707463. The reversal of 1489707420 is 247079841.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12414169 + ... + 12414288.

It is an arithmetic number, because the mean of its divisors is an integer number (173799206).

Almost surely, 21489707420 is an apocalyptic number.

1489707420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1489707420 is an abundant number, since it is smaller than the sum of its proper divisors (2681473524).

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

1489707420 is a wasteful number, since it uses less digits than its factorization.

1489707420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24828469 (or 24828467 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1489707420 is about 38596.7280996719. The cubic root of 1489707420 is about 1142.0899948810.

The spelling of 1489707420 in words is "one billion, four hundred eighty-nine million, seven hundred seven thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 24828457 49656914 74485371 99313828 124142285 148970742 248284570 297941484 372426855 496569140 744853710 1489707420