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153981201910990 = 25177162632036939
BaseRepresentation
bin100011000000101110001010…
…110101111000110011001110
3202012012110101201020122000211
4203000232022311320303032
5130140312000142122430
61303253553153513034
744301526504510336
oct4300561265706316
9665173351218024
10153981201910990
1145077074219383
121532a708b7277a
1367bc498c9cc4c
142a04a30d400c6
1512c060ee3572a
hex8c0b8ad78cce

153981201910990 has 64 divisors (see below), whose sum is σ = 297651100308480. Its totient is φ = 57143769786880.

The previous prime is 153981201910979. The next prime is 153981201910997. The reversal of 153981201910990 is 99019102189351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153981201910997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74575941 + ... + 76612879.

It is an arithmetic number, because the mean of its divisors is an integer number (4650798442320).

Almost surely, 2153981201910990 is an apocalyptic number.

153981201910990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

153981201910990 is a deficient number, since it is larger than the sum of its proper divisors (143669898397490).

153981201910990 is a wasteful number, since it uses less digits than its factorization.

153981201910990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043297.

The product of its (nonzero) digits is 1574640, while the sum is 58.

The spelling of 153981201910990 in words is "one hundred fifty-three trillion, nine hundred eighty-one billion, two hundred one million, nine hundred ten thousand, nine hundred ninety".

Divisors: 1 2 5 10 17 34 71 85 142 170 355 710 1207 2414 6035 6263 12070 12526 31315 62630 106471 212942 444673 532355 889346 1064710 2036939 2223365 4073878 4446730 7559441 10184695 15118882 20369390 34627963 37797205 69255926 75594410 144622669 173139815 289245338 346279630 723113345 1446226690 2458585373 4917170746 12292926865 12757348957 24585853730 25514697914 63786744785 127573489570 216874932269 433749864538 905771775947 1084374661345 1811543551894 2168749322690 4528858879735 9057717759470 15398120191099 30796240382198 76990600955495 153981201910990