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1493648988 = 223139574673
BaseRepresentation
bin101100100000111…
…0100011001011100
310212002120020012220
41121001310121130
511024333231423
6404114025340
752004543526
oct13101643134
93762506186
101493648988
116a7142657
12358278250
131aa5aa590
1410252ca16
158b1e29e3
hex5907465c

1493648988 has 24 divisors (see below), whose sum is σ = 3753272208. Its totient is φ = 459584256.

The previous prime is 1493648977. The next prime is 1493649011. The reversal of 1493648988 is 8898463941.

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, 4787181 + ... + 4787492.

It is an arithmetic number, because the mean of its divisors is an integer number (156386342).

Almost surely, 21493648988 is an apocalyptic number.

It is an amenable number.

1493648988 is an abundant number, since it is smaller than the sum of its proper divisors (2259623220).

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

1493648988 is a wasteful number, since it uses less digits than its factorization.

1493648988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9574693 (or 9574691 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 60.

The square root of 1493648988 is about 38647.7552776355. The cubic root of 1493648988 is about 1143.0963806334.

The spelling of 1493648988 in words is "one billion, four hundred ninety-three million, six hundred forty-eight thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 9574673 19149346 28724019 38298692 57448038 114896076 124470749 248941498 373412247 497882996 746824494 1493648988