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142703190 = 23257232359
BaseRepresentation
bin10001000000101…
…11101001010110
3100221112001222100
420200113221112
5243013000230
622054342530
73351646200
oct1040275126
9327461870
10142703190
1173609023
123b95aa46
1323745876
1414d49770
15c7dc660
hex8817a56

142703190 has 72 divisors (see below), whose sum is σ = 431617680. Its totient is φ = 32616864.

The previous prime is 142703177. The next prime is 142703213. The reversal of 142703190 is 91307241.

142703190 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1427031902 = 40728400872352200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11770 + ... + 20589.

It is an arithmetic number, because the mean of its divisors is an integer number (5994690).

Almost surely, 2142703190 is an apocalyptic number.

142703190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142703190 is an abundant number, since it is smaller than the sum of its proper divisors (288914490).

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

142703190 is a wasteful number, since it uses less digits than its factorization.

142703190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32386 (or 32376 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 142703190 is about 11945.8440471990. The cubic root of 142703190 is about 522.5701042205.

The spelling of 142703190 in words is "one hundred forty-two million, seven hundred three thousand, one hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 49 63 70 90 98 105 126 147 210 245 294 315 441 490 630 735 882 1470 2205 4410 32359 64718 97077 161795 194154 226513 291231 323590 453026 485385 582462 679539 970770 1132565 1359078 1456155 1585591 2038617 2265130 2912310 3171182 3397695 4077234 4756773 6795390 7927955 9513546 10193085 14270319 15855910 20386170 23783865 28540638 47567730 71351595 142703190