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13030231220202 = 2372972817146917
BaseRepresentation
bin1011110110011101011001…
…0011011001111111101010
31201010200022012212122010210
42331213112103121333222
53201441403143021302
643414001112321550
72513255163624540
oct275472623317752
951120265778123
1013030231220202
1141740a990a9a9
12156541a0a32b6
1373698cc18cb1
1433094905bd90
15178e2d73566c
hexbd9d64d9fea

13030231220202 has 64 divisors (see below), whose sum is σ = 30811031781120. Its totient is φ = 3594472713216.

The previous prime is 13030231220177. The next prime is 13030231220213. The reversal of 13030231220202 is 20202213203031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 88617648 + ... + 88764564.

It is an arithmetic number, because the mean of its divisors is an integer number (481422371580).

Almost surely, 213030231220202 is an apocalyptic number.

13030231220202 is an abundant number, since it is smaller than the sum of its proper divisors (17780800560918).

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

13030231220202 is a wasteful number, since it uses less digits than its factorization.

13030231220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219775.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13030231220202 its reverse (20202213203031), we get a palindrome (33232444423233).

The spelling of 13030231220202 in words is "thirteen trillion, thirty billion, two hundred thirty-one million, two hundred twenty thousand, two hundred two".

Divisors: 1 2 3 6 7 14 21 29 42 58 87 174 203 406 609 1218 72817 145634 146917 218451 293834 436902 440751 509719 881502 1019438 1028419 1529157 2056838 2111693 3058314 3085257 4223386 4260593 6170514 6335079 8521186 12670158 12781779 14781851 25563558 29563702 29824151 44345553 59648302 88691106 89472453 178944906 10698055189 21396110378 32094165567 64188331134 74886386323 149772772646 224659158969 310243600481 449318317938 620487200962 930730801443 1861461602886 2171705203367 4343410406734 6515115610101 13030231220202