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15030420212442 = 2320717120918571
BaseRepresentation
bin1101101010111000101011…
…0110111000101011011010
31222012220010211100021201110
43122232022312320223122
53432224300033244232
651544514004201150
73110624552552445
oct332561266705332
958186124307643
1015030420212442
114875402405418
121828bb53991b6
1385049368219b
1439d694a6665c
151b0e980e5acc
hexdab8adb8ada

15030420212442 has 16 divisors (see below), whose sum is σ = 30062291696352. Its totient is φ = 5009898192240.

The previous prime is 15030420212341. The next prime is 15030420212447. The reversal of 15030420212442 is 24421202403051.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15030420212447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60334984 + ... + 60583587.

It is an arithmetic number, because the mean of its divisors is an integer number (1878893231022).

Almost surely, 215030420212442 is an apocalyptic number.

15030420212442 is an abundant number, since it is smaller than the sum of its proper divisors (15031871483910).

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

15030420212442 is a wasteful number, since it uses less digits than its factorization.

15030420212442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120939293.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 15030420212442 its reverse (24421202403051), we get a palindrome (39451622615493).

The spelling of 15030420212442 in words is "fifteen trillion, thirty billion, four hundred twenty million, two hundred twelve thousand, four hundred forty-two".

Divisors: 1 2 3 6 20717 41434 62151 124302 120918571 241837142 362755713 725511426 2505070035407 5010140070814 7515210106221 15030420212442