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135973070 = 2516781421
BaseRepresentation
bin10000001101011…
…00100011001110
3100110212010222122
420012230203032
5234302114240
621254212542
73240515642
oct1006544316
9313763878
10135973070
116a831642
1239654152
132222a44c
14140b6c22
15be0d4b5
hex81ac8ce

135973070 has 16 divisors (see below), whose sum is σ = 246220128. Its totient is φ = 54062880.

The previous prime is 135973069. The next prime is 135973073. The reversal of 135973070 is 70379531.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 135973070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135973073) 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, 39041 + ... + 42380.

It is an arithmetic number, because the mean of its divisors is an integer number (15388758).

Almost surely, 2135973070 is an apocalyptic number.

135973070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135973070 is a deficient number, since it is larger than the sum of its proper divisors (110247058).

135973070 is a wasteful number, since it uses less digits than its factorization.

135973070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81595.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 135973070 is about 11660.7491183028. The cubic root of 135973070 is about 514.2223724531. Note that the first 3 decimals are identical.

The spelling of 135973070 in words is "one hundred thirty-five million, nine hundred seventy-three thousand, seventy".

Divisors: 1 2 5 10 167 334 835 1670 81421 162842 407105 814210 13597307 27194614 67986535 135973070