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1213530100054 = 2191371059721997
BaseRepresentation
bin10001101010001100000…
…001111101000101010110
311022000022222222102000021
4101222030001331011112
5124340302201200204
62325253225335354
7153450256440616
oct21521401750526
94260288872007
101213530100054
11428723117568
1217723493755a
138a58775017c
1442a41442a46
152187794e154
hex11a8c07d156

1213530100054 has 32 divisors (see below), whose sum is σ = 1930356177120. Its totient is φ = 570554419968.

The previous prime is 1213530100021. The next prime is 1213530100067. The reversal of 1213530100054 is 4500010353121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55156984 + ... + 55178980.

It is an arithmetic number, because the mean of its divisors is an integer number (60323630535).

Almost surely, 21213530100054 is an apocalyptic number.

1213530100054 is a deficient number, since it is larger than the sum of its proper divisors (716826077066).

1213530100054 is a wasteful number, since it uses less digits than its factorization.

1213530100054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32752.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 1213530100054 its reverse (4500010353121), we get a palindrome (5713540453175).

The spelling of 1213530100054 in words is "one trillion, two hundred thirteen billion, five hundred thirty million, one hundred thousand, fifty-four".

Divisors: 1 2 19 38 137 274 2603 5206 10597 21194 21997 43994 201343 402686 417943 835886 1451789 2903578 3013589 6027178 27583991 55167982 57258191 114516382 233102209 466204418 4428941971 8857883942 31935002633 63870005266 606765050027 1213530100054