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1489529020 = 225710639493
BaseRepresentation
bin101100011001000…
…0110100010111100
310211210210220200111
41120302012202330
511022304412040
6403445435404
751624534130
oct13062064274
93753726614
101489529020
116a4889221
12356a0bb64
131a9797225
14101b793c0
158ab7bdea
hex58c868bc

1489529020 has 24 divisors (see below), whose sum is σ = 3574869984. Its totient is φ = 510695616.

The previous prime is 1489529003. The next prime is 1489529023. The reversal of 1489529020 is 209259841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489529023) 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, 5319607 + ... + 5319886.

It is an arithmetic number, because the mean of its divisors is an integer number (148952916).

Almost surely, 21489529020 is an apocalyptic number.

1489529020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1489529020 is an abundant number, since it is smaller than the sum of its proper divisors (2085340964).

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

1489529020 is a wasteful number, since it uses less digits than its factorization.

1489529020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10639509 (or 10639507 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 1489529020 is about 38594.4169537512. The cubic root of 1489529020 is about 1142.0444027094.

The spelling of 1489529020 in words is "one billion, four hundred eighty-nine million, five hundred twenty-nine thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 10639493 21278986 42557972 53197465 74476451 106394930 148952902 212789860 297905804 372382255 744764510 1489529020