Search a number
-
+
157940202 = 2378345307
BaseRepresentation
bin10010110100111…
…11100111101010
3102000012012020010
421122133213222
5310413041302
623401112350
73625320030
oct1132374752
9360165203
10157940202
11811758a2
1244a886b6
132694c054
1416d94550
15dcec16c
hex969f9ea

157940202 has 32 divisors (see below), whose sum is σ = 365363712. Its totient is φ = 44581104.

The previous prime is 157940147. The next prime is 157940203. The reversal of 157940202 is 202049751.

It is a self number, because there is not a number n which added to its sum of digits gives 157940202.

It is not an unprimeable number, because it can be changed into a prime (157940203) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 19168 + ... + 26139.

It is an arithmetic number, because the mean of its divisors is an integer number (11417616).

Almost surely, 2157940202 is an apocalyptic number.

157940202 is an abundant number, since it is smaller than the sum of its proper divisors (207423510).

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

157940202 is a wasteful number, since it uses less digits than its factorization.

157940202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45402.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 157940202 is about 12567.4262281503. The cubic root of 157940202 is about 540.5438074556.

Adding to 157940202 its reverse (202049751), we get a palindrome (359989953).

The spelling of 157940202 in words is "one hundred fifty-seven million, nine hundred forty thousand, two hundred two".

Divisors: 1 2 3 6 7 14 21 42 83 166 249 498 581 1162 1743 3486 45307 90614 135921 271842 317149 634298 951447 1902894 3760481 7520962 11281443 22562886 26323367 52646734 78970101 157940202