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31505150414 = 2176917133963
BaseRepresentation
bin11101010101110110…
…100111000111001110
310000022122111110120202
4131111312213013032
51004010304303124
622250120413502
72163504234323
oct352566470716
9100278443522
1031505150414
11123a79218a1
126133017292
132c8116b74a
14174c2ccb4a
15c45d3e5ae
hex755da71ce

31505150414 has 16 divisors (see below), whose sum is σ = 50045199408. Its totient is φ = 14823699072.

The previous prime is 31505150401. The next prime is 31505150429. The reversal of 31505150414 is 41405150513.

It is a congruent number.

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, 168197 + ... + 302159.

It is an arithmetic number, because the mean of its divisors is an integer number (3127824963).

Almost surely, 231505150414 is an apocalyptic number.

31505150414 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31505150414 is a deficient number, since it is larger than the sum of its proper divisors (18540048994).

31505150414 is a wasteful number, since it uses less digits than its factorization.

31505150414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140899.

The product of its (nonzero) digits is 6000, while the sum is 29.

Subtracting 31505150414 from its reverse (41405150513), we obtain a palindrome (9900000099).

The spelling of 31505150414 in words is "thirty-one billion, five hundred five million, one hundred fifty thousand, four hundred fourteen".

Divisors: 1 2 17 34 6917 13834 117589 133963 235178 267926 2277371 4554742 926622071 1853244142 15752575207 31505150414