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140408308 = 2235102077
BaseRepresentation
bin10000101111001…
…11010111110100
3100210012110222201
420113213113310
5241421031213
621533234244
73323310445
oct1027472764
9323173881
10140408308
1172290927
123b032984
1323121151
141490d2cc
15c4d76dd
hex85e75f4

140408308 has 6 divisors (see below), whose sum is σ = 245714546. Its totient is φ = 70204152.

The previous prime is 140408293. The next prime is 140408311. The reversal of 140408308 is 803804041.

140408308 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 124947684 + 15460624 = 11178^2 + 3932^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17551035 + ... + 17551042.

Almost surely, 2140408308 is an apocalyptic number.

It is an amenable number.

140408308 is a deficient number, since it is larger than the sum of its proper divisors (105306238).

140408308 is a wasteful number, since it uses less digits than its factorization.

140408308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35102081 (or 35102079 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 140408308 is about 11849.4011663037. The cubic root of 140408308 is about 519.7537147324.

The spelling of 140408308 in words is "one hundred forty million, four hundred eight thousand, three hundred eight".

Divisors: 1 2 4 35102077 70204154 140408308