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29907499489 = 737599720177
BaseRepresentation
bin11011110110101000…
…000011100111100001
32212012022020101112021
4123312220003213201
5442222304440424
621423405301441
72106064360030
oct336650034741
985168211467
1029907499489
111175800502a
125967b64881
132a88178c7a
14163a04a717
15ba09564e4
hex6f6a039e1

29907499489 has 32 divisors (see below), whose sum is σ = 36068578560. Its totient is φ = 24265433088.

The previous prime is 29907499483. The next prime is 29907499649. The reversal of 29907499489 is 98499470992.

It is not a de Polignac number, because 29907499489 - 29 = 29907498977 is a prime.

It is a super-2 number, since 2×299074994892 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29907499483) 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, 1472169 + ... + 1492345.

It is an arithmetic number, because the mean of its divisors is an integer number (1127143080).

Almost surely, 229907499489 is an apocalyptic number.

It is an amenable number.

29907499489 is a deficient number, since it is larger than the sum of its proper divisors (6161079071).

29907499489 is a wasteful number, since it uses less digits than its factorization.

29907499489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20377.

The product of its (nonzero) digits is 105815808, while the sum is 70.

The spelling of 29907499489 in words is "twenty-nine billion, nine hundred seven million, four hundred ninety-nine thousand, four hundred eighty-nine".

Divisors: 1 7 37 59 97 259 413 679 2183 3589 5723 15281 20177 25123 40061 141239 211751 746549 1190443 1482257 1957169 5225843 8333101 13700183 44046391 72415253 115472971 308324737 506906771 808310797 4272499927 29907499489