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142733031 = 3724773283
BaseRepresentation
bin10001000000111…
…10111011100111
3100221120120220120
420200132323213
5243014424111
622055133023
73352132200
oct1040367347
9327516816
10142733031
1173629491
123b974173
132375631c
1414d565a7
15c7e6406
hex881eee7

142733031 has 48 divisors (see below), whose sum is σ = 229999104. Its totient is φ = 78454656.

The previous prime is 142733029. The next prime is 142733033. The reversal of 142733031 is 130337241.

It is an interprime number because it is at equal distance from previous prime (142733029) and next prime (142733033).

It is not a de Polignac number, because 142733031 - 21 = 142733029 is a prime.

It is a super-2 number, since 2×1427330312 = 40745436276893922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142732992 and 142733010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142733033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 504216 + ... + 504498.

It is an arithmetic number, because the mean of its divisors is an integer number (4791648).

Almost surely, 2142733031 is an apocalyptic number.

142733031 is a deficient number, since it is larger than the sum of its proper divisors (87266073).

142733031 is a wasteful number, since it uses less digits than its factorization.

142733031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 142733031 is about 11947.0929936952. The cubic root of 142733031 is about 522.6065269700.

The spelling of 142733031 in words is "one hundred forty-two million, seven hundred thirty-three thousand, thirty-one".

Divisors: 1 3 7 21 47 49 73 141 147 219 283 329 511 849 987 1533 1981 2303 3431 3577 5943 6909 10293 10731 13301 13867 20659 24017 39903 41601 61977 72051 93107 144613 168119 279321 433839 504357 651749 970973 1012291 1955247 2912919 3036873 6796811 20390433 47577677 142733031