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29954420 = 2251497721
BaseRepresentation
bin111001001000…
…1000101110100
32002100211201222
41302101011310
530132020140
62550005512
7512415446
oct162210564
962324658
1029954420
11159aa221
12a046898
13628a312
143d9a496
15296a5b5
hex1c91174

29954420 has 12 divisors (see below), whose sum is σ = 62904324. Its totient is φ = 11981760.

The previous prime is 29954411. The next prime is 29954429. The reversal of 29954420 is 2445992.

It is an interprime number because it is at equal distance from previous prime (29954411) and next prime (29954429).

It can be written as a sum of positive squares in 2 ways, for example, as 18079504 + 11874916 = 4252^2 + 3446^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29954429) 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 3 ways as a sum of consecutive naturals, for example, 748841 + ... + 748880.

It is an arithmetic number, because the mean of its divisors is an integer number (5242027).

Almost surely, 229954420 is an apocalyptic number.

29954420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29954420 is an abundant number, since it is smaller than the sum of its proper divisors (32949904).

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

29954420 is a wasteful number, since it uses less digits than its factorization.

29954420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497730 (or 1497728 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 29954420 is about 5473.0631277192. The cubic root of 29954420 is about 310.5658067679.

The spelling of 29954420 in words is "twenty-nine million, nine hundred fifty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1497721 2995442 5990884 7488605 14977210 29954420