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140399038 = 21323234781
BaseRepresentation
bin10000101111001…
…01000110111110
3100210012000021101
420113211012332
5241420232123
621533123314
73323241433
oct1027450676
9323160241
10140399038
117228496a
123b02953a
1323119b70
1414909b8a
15c4d4aad
hex85e51be

140399038 has 16 divisors (see below), whose sum is σ = 236660256. Its totient is φ = 61981920.

The previous prime is 140399033. The next prime is 140399041. The reversal of 140399038 is 830993041.

It is a junction number, because it is equal to n+sod(n) for n = 140398988 and 140399006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140399033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116793 + ... + 117988.

It is an arithmetic number, because the mean of its divisors is an integer number (14791266).

Almost surely, 2140399038 is an apocalyptic number.

140399038 is a deficient number, since it is larger than the sum of its proper divisors (96261218).

140399038 is a wasteful number, since it uses less digits than its factorization.

140399038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234819.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 140399038 is about 11849.0100008397. The cubic root of 140399038 is about 519.7422761334.

The spelling of 140399038 in words is "one hundred forty million, three hundred ninety-nine thousand, thirty-eight".

Divisors: 1 2 13 23 26 46 299 598 234781 469562 3052153 5399963 6104306 10799926 70199519 140399038