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29885492 = 22721337317
BaseRepresentation
bin111001000000…
…0010000110100
32002020100012002
41302000100310
530122313432
62544314432
7512010500
oct162002064
962210162
1029885492
111596245a
12a012a18
136264b30
143d7d300
152954e62
hex1c80434

29885492 has 72 divisors (see below), whose sum is σ = 67501224. Its totient is φ = 11467008.

The previous prime is 29885489. The next prime is 29885501. The reversal of 29885492 is 29458892.

It can be written as a sum of positive squares in 4 ways, for example, as 682276 + 29203216 = 826^2 + 5404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94118 + ... + 94434.

It is an arithmetic number, because the mean of its divisors is an integer number (937517).

Almost surely, 229885492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29885492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33750612).

29885492 is an abundant number, since it is smaller than the sum of its proper divisors (37615732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29885492 is a wasteful number, since it uses less digits than its factorization.

29885492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 376 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 29885492 is about 5466.7624788352. The cubic root of 29885492 is about 310.3274098906.

The spelling of 29885492 in words is "twenty-nine million, eight hundred eighty-five thousand, four hundred ninety-two".

Divisors: 1 2 4 7 13 14 26 28 37 49 52 74 91 98 148 182 196 259 317 364 481 518 634 637 962 1036 1268 1274 1813 1924 2219 2548 3367 3626 4121 4438 6734 7252 8242 8876 11729 13468 15533 16484 23458 23569 28847 31066 46916 47138 57694 62132 82103 94276 115388 152477 164206 201929 304954 328412 403858 574721 609908 807716 1067339 1149442 2134678 2298884 4269356 7471373 14942746 29885492