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136190448 = 2432945767
BaseRepresentation
bin10000001111000…
…01100111110000
3100111021012011200
420013201213300
5234331043243
621303011200
73242412462
oct1007414760
9314235150
10136190448
116a96a999
1239739b00
13222a5384
1414132132
15be52ad3
hex81e19f0

136190448 has 30 divisors (see below), whose sum is σ = 381144504. Its totient is φ = 45396768.

The previous prime is 136190447. The next prime is 136190459. The reversal of 136190448 is 844091631.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136190441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 472740 + ... + 473027.

Almost surely, 2136190448 is an apocalyptic number.

136190448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

136190448 is an abundant number, since it is smaller than the sum of its proper divisors (244954056).

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

136190448 is a wasteful number, since it uses less digits than its factorization.

136190448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945781 (or 945772 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 136190448 is about 11670.0663237190. The cubic root of 136190448 is about 514.4962529512.

It can be divided in two parts, 1361 and 90448, that added together give a square (91809 = 3032).

The spelling of 136190448 in words is "one hundred thirty-six million, one hundred ninety thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 945767 1891534 2837301 3783068 5674602 7566136 8511903 11349204 15132272 17023806 22698408 34047612 45396816 68095224 136190448