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157144022 = 27171923159
BaseRepresentation
bin10010101110111…
…01001111010110
3101221200202001222
421113131033112
5310212102042
623332050342
73615462560
oct1127351726
9357622058
10157144022
11807816a2
12447639b2
1326730839
1416c28330
15dbe12d2
hex95dd3d6

157144022 has 96 divisors (see below), whose sum is σ = 316016640. Its totient is φ = 57127680.

The previous prime is 157143967. The next prime is 157144033. The reversal of 157144022 is 220441751.

It is a junction number, because it is equal to n+sod(n) for n = 157143982 and 157144000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2663429 + ... + 2663487.

It is an arithmetic number, because the mean of its divisors is an integer number (3291840).

Almost surely, 2157144022 is an apocalyptic number.

157144022 is an abundant number, since it is smaller than the sum of its proper divisors (158872618).

157144022 is a wasteful number, since it uses less digits than its factorization.

157144022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 157144022 is about 12535.7098722011. The cubic root of 157144022 is about 539.6339792132.

Adding to 157144022 its reverse (220441751), we get a palindrome (377585773).

The spelling of 157144022 in words is "one hundred fifty-seven million, one hundred forty-four thousand, twenty-two".

Divisors: 1 2 7 14 17 19 31 34 38 59 62 118 119 133 217 238 266 323 361 413 434 527 589 646 722 826 1003 1054 1121 1178 1829 2006 2242 2261 2527 3658 3689 4123 4522 5054 6137 7021 7378 7847 8246 10013 11191 12274 12803 14042 15694 19057 20026 21299 22382 25606 31093 34751 38114 42598 42959 62186 69502 70091 78337 85918 133399 140182 149093 156674 190247 217651 243257 266798 298186 362083 380494 435302 486514 590767 660269 724166 1181534 1320538 1331729 2534581 2663458 4135369 4621883 5069162 8270738 9243766 11224573 22449146 78572011 157144022