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1493047480 = 23537326187
BaseRepresentation
bin101100011111110…
…0001100010111000
310212001102200002211
41120333201202320
511024210004410
6404053104504
751666460051
oct13077414270
93761380084
101493047480
116a6871741
12358028134
131aa429862
14102413728
158b12468a
hex58fe18b8

1493047480 has 16 divisors (see below), whose sum is σ = 3359356920. Its totient is φ = 597218976.

The previous prime is 1493047459. The next prime is 1493047483. The reversal of 1493047480 is 847403941.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 37326187 = 1493047480 / (1 + 4 + 9 + 3 + 0 + 4 + 7 + 4 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493047483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18663054 + ... + 18663133.

Almost surely, 21493047480 is an apocalyptic number.

1493047480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1493047480 is an abundant number, since it is smaller than the sum of its proper divisors (1866309440).

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

1493047480 is a wasteful number, since it uses less digits than its factorization.

1493047480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37326198 (or 37326194 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1493047480 is about 38639.9725672780. The cubic root of 1493047480 is about 1142.9429144258.

The spelling of 1493047480 in words is "one billion, four hundred ninety-three million, forty-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 37326187 74652374 149304748 186630935 298609496 373261870 746523740 1493047480