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2115441420140 = 225123185923697
BaseRepresentation
bin11110110010001010001…
…000100110011101101100
321111020022202020121111102
4132302022020212131230
5234124411000421030
64255453111142232
7305556416246126
oct36621210463554
97436282217442
102115441420140
11746176594434
122a1ba1074978
131246401a44b9
14745605dc216
153a062b72c45
hex1ec8a22676c

2115441420140 has 24 divisors (see below), whose sum is σ = 4446035829312. Its totient is φ = 845489168640.

The previous prime is 2115441420119. The next prime is 2115441420167. The reversal of 2115441420140 is 410241445112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42937229 + ... + 42986468.

It is an arithmetic number, because the mean of its divisors is an integer number (185251492888).

Almost surely, 22115441420140 is an apocalyptic number.

2115441420140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115441420140 is an abundant number, since it is smaller than the sum of its proper divisors (2330594409172).

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

2115441420140 is a wasteful number, since it uses less digits than its factorization.

2115441420140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85924937 (or 85924935 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 2115441420140 its reverse (410241445112), we get a palindrome (2525682865252).

The spelling of 2115441420140 in words is "two trillion, one hundred fifteen billion, four hundred forty-one million, four hundred twenty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1231 2462 4924 6155 12310 24620 85923697 171847394 343694788 429618485 859236970 1718473940 105772071007 211544142014 423088284028 528860355035 1057720710070 2115441420140