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1293497044 = 22746196323
BaseRepresentation
bin100110100011001…
…0011001011010100
310100010221110100221
41031012103023110
510122113401134
6332204044124
744024354260
oct11506231324
93303843327
101293497044
11604166524
12301233644
13177c9c088
14c3b0b0a0
15788585b4
hex4d1932d4

1293497044 has 12 divisors (see below), whose sum is σ = 2586994144. Its totient is φ = 554355864.

The previous prime is 1293497033. The next prime is 1293497047. The reversal of 1293497044 is 4407943921.

1293497044 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293497047) 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, 23098134 + ... + 23098189.

Almost surely, 21293497044 is an apocalyptic number.

1293497044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1293497044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1293497044 is a wasteful number, since it uses less digits than its factorization.

1293497044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46196334 (or 46196332 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 1293497044 is about 35965.2199214741. The cubic root of 1293497044 is about 1089.5700248369.

The spelling of 1293497044 in words is "one billion, two hundred ninety-three million, four hundred ninety-seven thousand, forty-four".

Divisors: 1 2 4 7 14 28 46196323 92392646 184785292 323374261 646748522 1293497044