Search a number
-
+
29907020 = 225111310457
BaseRepresentation
bin111001000010…
…1100001001100
32002021102201102
41302011201030
530124011040
62545002232
7512130323
oct162054114
962242642
1029907020
1115977650
12a023378
136271880
143d870ba
15295b515
hex1c8584c

29907020 has 48 divisors (see below), whose sum is σ = 73791648. Its totient is φ = 10037760.

The previous prime is 29907013. The next prime is 29907037. The reversal of 29907020 is 2070992.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2369 + ... + 8088.

It is an arithmetic number, because the mean of its divisors is an integer number (1537326).

Almost surely, 229907020 is an apocalyptic number.

29907020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29907020 is an abundant number, since it is smaller than the sum of its proper divisors (43884628).

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

29907020 is a wasteful number, since it uses less digits than its factorization.

29907020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10490 (or 10488 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 29907020 is about 5468.7311142531. The cubic root of 29907020 is about 310.4019067398.

The spelling of 29907020 in words is "twenty-nine million, nine hundred seven thousand, twenty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 1430 2860 10457 20914 41828 52285 104570 115027 135941 209140 230054 271882 460108 543764 575135 679705 1150270 1359410 1495351 2300540 2718820 2990702 5981404 7476755 14953510 29907020