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142144310 = 257111710859
BaseRepresentation
bin10000111100011…
…11001100110110
3100220110200100002
420132033030312
5242342104220
622034351302
73344130620
oct1036171466
9326420302
10142144310
1173267140
123b72b532
13235ab379
1414c41c10
15c72bc75
hex878f336

142144310 has 64 divisors (see below), whose sum is σ = 337789440. Its totient is φ = 41694720.

The previous prime is 142144297. The next prime is 142144333. The reversal of 142144310 is 13441241.

It is a super-2 number, since 2×1421443102 = 40410009730752200, 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 31 ways as a sum of consecutive naturals, for example, 7661 + ... + 18519.

It is an arithmetic number, because the mean of its divisors is an integer number (5277960).

Almost surely, 2142144310 is an apocalyptic number.

142144310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142144310 is an abundant number, since it is smaller than the sum of its proper divisors (195645130).

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

142144310 is a wasteful number, since it uses less digits than its factorization.

142144310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10901.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 142144310 is about 11922.4288632812. The cubic root of 142144310 is about 521.8870172332.

Adding to 142144310 its reverse (13441241), we get a palindrome (155585551).

The spelling of 142144310 in words is "one hundred forty-two million, one hundred forty-four thousand, three hundred ten".

Divisors: 1 2 5 7 10 11 14 17 22 34 35 55 70 77 85 110 119 154 170 187 238 374 385 595 770 935 1190 1309 1870 2618 6545 10859 13090 21718 54295 76013 108590 119449 152026 184603 238898 369206 380065 597245 760130 836143 923015 1194490 1292221 1672286 1846030 2030633 2584442 4061266 4180715 6461105 8361430 10153165 12922210 14214431 20306330 28428862 71072155 142144310