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31220052133354 = 273013374005367
BaseRepresentation
bin1110001100100111111000…
…00111100000010111101010
311002112121102010000210020021
413012103330013200113222
513043002131321231404
6150222143254351054
76401400665410360
oct706237407402752
9132477363023207
1031220052133354
119a47393584787
1236027a435b48a
131456066156006
1479d0b6a8b630
1539218a0cc454
hex1c64fc1e05ea

31220052133354 has 16 divisors (see below), whose sum is σ = 53521866223488. Its totient is φ = 13379578129872.

The previous prime is 31220052133349. The next prime is 31220052133357. The reversal of 31220052133354 is 45333125002213.

It is not an unprimeable number, because it can be changed into a prime (31220052133357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36580822 + ... + 37424545.

It is an arithmetic number, because the mean of its divisors is an integer number (3345116638968).

Almost surely, 231220052133354 is an apocalyptic number.

31220052133354 is a deficient number, since it is larger than the sum of its proper divisors (22301814090134).

31220052133354 is a wasteful number, since it uses less digits than its factorization.

31220052133354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74035509.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 31220052133354 its reverse (45333125002213), we get a palindrome (76553177135567).

The spelling of 31220052133354 in words is "thirty-one trillion, two hundred twenty billion, fifty-two million, one hundred thirty-three thousand, three hundred fifty-four".

Divisors: 1 2 7 14 30133 60266 210931 421862 74005367 148010734 518037569 1036075138 2230003723811 4460007447622 15610026066677 31220052133354