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29902419 = 331107497
BaseRepresentation
bin111001000010…
…0011001010011
32002021012102000
41302010121103
530123334134
62544525043
7512111031
oct162043123
962235360
1029902419
1115974148
12a020783
13626c751
143d85551
152959e99
hex1c84653

29902419 has 8 divisors (see below), whose sum is σ = 44299920. Its totient is φ = 19934928.

The previous prime is 29902361. The next prime is 29902421. The reversal of 29902419 is 91420992.

It is not a de Polignac number, because 29902419 - 211 = 29900371 is a prime.

It is a super-2 number, since 2×299024192 = 1788309324103122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29902429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553722 + ... + 553775.

It is an arithmetic number, because the mean of its divisors is an integer number (5537490).

Almost surely, 229902419 is an apocalyptic number.

29902419 is a deficient number, since it is larger than the sum of its proper divisors (14397501).

29902419 is a wasteful number, since it uses less digits than its factorization.

29902419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107506 (or 1107500 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 29902419 is about 5468.3104337629. The cubic root of 29902419 is about 310.3859881537.

The spelling of 29902419 in words is "twenty-nine million, nine hundred two thousand, four hundred nineteen".

Divisors: 1 3 9 27 1107497 3322491 9967473 29902419