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29506428 = 22327243389
BaseRepresentation
bin111000010001…
…1101101111100
32001112002012200
41300203231330
530023201203
62532231500
7505541400
oct160435574
961462180
1029506428
1115723686
129a6b590
136161433
143cc1100
1528cc9a3
hex1c23b7c

29506428 has 108 divisors (see below), whose sum is σ = 89008920. Its totient is φ = 8213184.

The previous prime is 29506403. The next prime is 29506481. The reversal of 29506428 is 82460592.

It is a happy number.

29506428 is a `hidden beast` number, since 2 + 9 + 5 + 0 + 642 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 29506392 and 29506401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 75658 + ... + 76046.

Almost surely, 229506428 is an apocalyptic number.

29506428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29506428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44504460).

29506428 is an abundant number, since it is smaller than the sum of its proper divisors (59502492).

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

29506428 is a wasteful number, since it uses less digits than its factorization.

29506428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 29506428 is about 5431.9819587329. The cubic root of 29506428 is about 309.0097712686.

The spelling of 29506428 in words is "twenty-nine million, five hundred six thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 43 49 63 84 86 98 126 129 147 172 196 252 258 294 301 387 389 441 516 588 602 774 778 882 903 1167 1204 1548 1556 1764 1806 2107 2334 2709 2723 3501 3612 4214 4668 5418 5446 6321 7002 8169 8428 10836 10892 12642 14004 16338 16727 18963 19061 24507 25284 32676 33454 37926 38122 49014 50181 57183 66908 75852 76244 98028 100362 114366 117089 150543 171549 200724 228732 234178 301086 343098 351267 468356 602172 686196 702534 819623 1053801 1405068 1639246 2107602 2458869 3278492 4215204 4917738 7376607 9835476 14753214 29506428