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142770492 = 22334371433
BaseRepresentation
bin10001000001010…
…00000100111100
3100221122111022000
420200220010330
5243022123432
622100022300
73352346334
oct1040500474
9327574260
10142770492
1173654647
123b991990
132376a3a7
1414d660c4
15c80257c
hex882813c

142770492 has 96 divisors (see below), whose sum is σ = 384975360. Its totient is φ = 45722880.

The previous prime is 142770461. The next prime is 142770533. The reversal of 142770492 is 294077241.

142770492 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 329508 + ... + 329940.

It is an arithmetic number, because the mean of its divisors is an integer number (4010160).

Almost surely, 2142770492 is an apocalyptic number.

142770492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142770492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192487680).

142770492 is an abundant number, since it is smaller than the sum of its proper divisors (242204868).

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

142770492 is a wasteful number, since it uses less digits than its factorization.

142770492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 142770492 is about 11948.6606780844. The cubic root of 142770492 is about 522.6522432056.

The spelling of 142770492 in words is "one hundred forty-two million, seven hundred seventy thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 43 54 71 86 108 129 142 172 213 258 284 387 426 433 516 639 774 852 866 1161 1278 1299 1548 1732 1917 2322 2556 2598 3053 3834 3897 4644 5196 6106 7668 7794 9159 11691 12212 15588 18318 18619 23382 27477 30743 36636 37238 46764 54954 55857 61486 74476 82431 92229 109908 111714 122972 164862 167571 184458 223428 276687 329724 335142 368916 502713 553374 670284 830061 1005426 1106748 1321949 1660122 2010852 2643898 3320244 3965847 5287796 7931694 11897541 15863388 23795082 35692623 47590164 71385246 142770492