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126870416890 = 2571812434527
BaseRepresentation
bin111011000101000010…
…0001110110111111010
3110010110211001221200021
41312022010032313322
54034312311320030
6134141121201054
712110652515230
oct1661204166772
9403424057607
10126870416890
1149895052008
122070879018a
13bc6b6bc4c9
1461d79b0950
15347822497a
hex1d8a10edfa

126870416890 has 16 divisors (see below), whose sum is σ = 260990572032. Its totient is φ = 43498428624.

The previous prime is 126870416887. The next prime is 126870416923. The reversal of 126870416890 is 98614078621.

It is a super-2 number, since 2×1268704168902 (a number of 23 digits) contains 22 as substring.

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, 906217194 + ... + 906217333.

It is an arithmetic number, because the mean of its divisors is an integer number (16311910752).

Almost surely, 2126870416890 is an apocalyptic number.

126870416890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126870416890 is an abundant number, since it is smaller than the sum of its proper divisors (134120155142).

126870416890 is a wasteful number, since it uses less digits than its factorization.

126870416890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812434541.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 126870416890 in words is "one hundred twenty-six billion, eight hundred seventy million, four hundred sixteen thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 1812434527 3624869054 9062172635 12687041689 18124345270 25374083378 63435208445 126870416890