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13121010120032 = 253724674492069
BaseRepresentation
bin1011111011101111100100…
…1001011011010101100000
31201110100121202101112221222
42332323321021123111200
53204433312042320112
643523413035234212
72522650601554223
oct276737111332540
951410552345858
1013121010120032
1141a965316aa61
12157ab338a8968
137423c9214039
143350bb5915ba
1517b49316c372
hexbeef925b560

13121010120032 has 48 divisors (see below), whose sum is σ = 26540910451440. Its totient is φ = 6380605260288.

The previous prime is 13121010119989. The next prime is 13121010120037. The reversal of 13121010120032 is 23002101012131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121010120037) 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, 674894 + ... + 5166962.

It is an arithmetic number, because the mean of its divisors is an integer number (552935634405).

Almost surely, 213121010120032 is an apocalyptic number.

It is an amenable number.

13121010120032 is an abundant number, since it is smaller than the sum of its proper divisors (13419900331408).

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

13121010120032 is a wasteful number, since it uses less digits than its factorization.

13121010120032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4494583 (or 4494575 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13121010120032 its reverse (23002101012131), we get a palindrome (36123111132163).

The spelling of 13121010120032 in words is "thirteen trillion, one hundred twenty-one billion, ten million, one hundred twenty thousand, thirty-two".

Divisors: 1 2 4 8 16 32 37 74 148 296 592 1184 2467 4934 9868 19736 39472 78944 91279 182558 365116 730232 1460464 2920928 4492069 8984138 17968276 35936552 71873104 143746208 166206553 332413106 664826212 1329652424 2659304848 5318609696 11081934223 22163868446 44327736892 88655473784 177310947568 354621895136 410031566251 820063132502 1640126265004 3280252530008 6560505060016 13121010120032