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31033133211230 = 25171999459119891
BaseRepresentation
bin1110000111001011101101…
…11000011001111001011110
311001212201221102002201010122
413003211312320121321132
513031421324100224410
6150000231413234542
76352032653653553
oct703456670317136
9131781842081118
1031033133211230
119985094735a47
123592519632a52
131441547c55707
14794023ddca2a
1538c39a272e55
hex1c3976e19e5e

31033133211230 has 64 divisors (see below), whose sum is σ = 59190953472000. Its totient is φ = 11674087027200.

The previous prime is 31033133211209. The next prime is 31033133211307. The reversal of 31033133211230 is 3211233133013.

It is a super-2 number, since 2×310331332112302 (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31033133211230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1560149585 + ... + 1560169475.

It is an arithmetic number, because the mean of its divisors is an integer number (924858648000).

Almost surely, 231033133211230 is an apocalyptic number.

31033133211230 is a deficient number, since it is larger than the sum of its proper divisors (28157820260770).

31033133211230 is a wasteful number, since it uses less digits than its factorization.

31033133211230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26505.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31033133211230 its reverse (3211233133013), we get a palindrome (34244366344243).

The spelling of 31033133211230 in words is "thirty-one trillion, thirty-three billion, one hundred thirty-three million, two hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 1999 3998 4591 9182 9995 19891 19990 22955 33983 39782 45910 67966 78047 99455 156094 169915 198910 338147 339830 390235 676294 780470 1690735 3381470 9177409 18354818 39762109 45887045 79524218 91319581 91774090 156015953 182639162 198810545 312031906 397621090 456597905 675955853 780079765 913195810 1351911706 1552432877 1560159530 3104865754 3379779265 6759558530 7762164385 15524328770 182547842419 365095684838 912739212095 1825478424190 3103313321123 6206626642246 15516566605615 31033133211230