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31422311010 = 23253131115453
BaseRepresentation
bin11101010000111010…
…100110101001100010
310000002212121210021200
4131100322212221202
51003323102423020
622234001102030
72161450144116
oct352072465142
9100085553250
1031422311010
1112365091382
12610b327916
132c69c55b4c
1417412c7746
15c3d929590
hex750ea6a62

31422311010 has 48 divisors (see below), whose sum is σ = 81959098104. Its totient is φ = 8352504576.

The previous prime is 31422311003. The next prime is 31422311021. The reversal of 31422311010 is 1011322413.

It can be written as a sum of positive squares in 4 ways, for example, as 8804256561 + 22618054449 = 93831^2 + 150393^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 529557 + ... + 585896.

Almost surely, 231422311010 is an apocalyptic number.

31422311010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31422311010 is an abundant number, since it is smaller than the sum of its proper divisors (50536787094).

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

31422311010 is a wasteful number, since it uses less digits than its factorization.

31422311010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115779 (or 1115776 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31422311010 its reverse (1011322413), we get a palindrome (32433633423).

The spelling of 31422311010 in words is "thirty-one billion, four hundred twenty-two million, three hundred eleven thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 313 626 939 1565 1878 2817 3130 4695 5634 9390 14085 28170 1115453 2230906 3346359 5577265 6692718 10039077 11154530 16731795 20078154 33463590 50195385 100390770 349136789 698273578 1047410367 1745683945 2094820734 3142231101 3491367890 5237051835 6284462202 10474103670 15711155505 31422311010