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29887101145 = 511543401839
BaseRepresentation
bin11011110101011010…
…001111100011011001
32212010212212001021001
4123311122033203121
5442202044214040
621421400145001
72105426111446
oct336532174331
985125761231
1029887101145
11117475424a0
125961168161
132a83b86445
14163745a9cd
15b9dc7759a
hex6f568f8d9

29887101145 has 8 divisors (see below), whose sum is σ = 39124932480. Its totient is φ = 21736073520.

The previous prime is 29887101133. The next prime is 29887101149. The reversal of 29887101145 is 54110178892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29887101145 - 219 = 29886576857 is a prime.

It is a super-2 number, since 2×298871011452 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29887101095 and 29887101104.

It is not an unprimeable number, because it can be changed into a prime (29887101149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271700865 + ... + 271700974.

It is an arithmetic number, because the mean of its divisors is an integer number (4890616560).

Almost surely, 229887101145 is an apocalyptic number.

It is an amenable number.

29887101145 is a deficient number, since it is larger than the sum of its proper divisors (9237831335).

29887101145 is a wasteful number, since it uses less digits than its factorization.

29887101145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543401855.

The product of its (nonzero) digits is 161280, while the sum is 46.

The spelling of 29887101145 in words is "twenty-nine billion, eight hundred eighty-seven million, one hundred one thousand, one hundred forty-five".

Divisors: 1 5 11 55 543401839 2717009195 5977420229 29887101145