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29319661371 = 371121317109479
BaseRepresentation
bin11011010011100101…
…101000011100111011
32210200100010010020010
4123103211220130323
5440021313130441
621245210033003
72055366003210
oct332345503473
983610103203
1029319661371
1111486203600
125823118763
1329c344ac70
1415c1d4bb07
15b6903c116
hex6d396873b

29319661371 has 192 divisors, whose sum is σ = 56628633600. Its totient is φ = 13083586560.

The previous prime is 29319661363. The next prime is 29319661373. The reversal of 29319661371 is 17316691392.

It is not a de Polignac number, because 29319661371 - 23 = 29319661363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29319661371.

It is not an unprimeable number, because it can be changed into a prime (29319661373) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 61209910 + ... + 61210388.

It is an arithmetic number, because the mean of its divisors is an integer number (294940800).

Almost surely, 229319661371 is an apocalyptic number.

29319661371 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

29319661371 is a deficient number, since it is larger than the sum of its proper divisors (27308972229).

29319661371 is a wasteful number, since it uses less digits than its factorization.

29319661371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 639 counting only the distinct ones).

The product of its digits is 367416, while the sum is 48.

The spelling of 29319661371 in words is "twenty-nine billion, three hundred nineteen million, six hundred sixty-one thousand, three hundred seventy-one".