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29952173913 = 3231075237757
BaseRepresentation
bin11011111001010010…
…011110011101011001
32212022102022002022120
4123321102132131121
5442320224031123
621432043011453
72110146164124
oct337122363531
985272262276
1029952173913
1111780248642
12597ab09b89
132a944bb33c
141641d593bb
15ba482d2e3
hex6f949e759

29952173913 has 32 divisors (see below), whose sum is σ = 42147910656. Its totient is φ = 18882819648.

The previous prime is 29952173897. The next prime is 29952173947. The reversal of 29952173913 is 31937125992.

It is not a de Polignac number, because 29952173913 - 24 = 29952173897 is a prime.

It is a super-2 number, since 2×299521739132 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29952173413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3857431 + ... + 3865187.

It is an arithmetic number, because the mean of its divisors is an integer number (1317122208).

Almost surely, 229952173913 is an apocalyptic number.

29952173913 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29952173913 is a deficient number, since it is larger than the sum of its proper divisors (12195736743).

29952173913 is a wasteful number, since it uses less digits than its factorization.

29952173913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8413.

The product of its digits is 918540, while the sum is 51.

The spelling of 29952173913 in words is "twenty-nine billion, nine hundred fifty-two million, one hundred seventy-three thousand, nine hundred thirteen".

Divisors: 1 3 23 69 107 321 523 1569 2461 7383 7757 12029 23271 36087 55961 167883 178411 535233 829999 1287103 2489997 3861309 4056911 12170733 19089977 57269931 93308953 279926859 434089477 1302268431 9984057971 29952173913