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23457070 = 25713149173
BaseRepresentation
bin101100101111…
…0110100101110
31122010202001101
41121132310232
522001111240
62154433314
7403244650
oct131366456
948122041
1023457070
111227170a
127a3283a
134b23b30
1431886d0
1520d539a
hex165ed2e

23457070 has 64 divisors (see below), whose sum is σ = 52617600. Its totient is φ = 7331328.

The previous prime is 23457061. The next prime is 23457097. The reversal of 23457070 is 7075432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135504 + ... + 135676.

It is an arithmetic number, because the mean of its divisors is an integer number (822150).

Almost surely, 223457070 is an apocalyptic number.

23457070 is the 2422-nd decagonal number.

23457070 is an abundant number, since it is smaller than the sum of its proper divisors (29160530).

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

23457070 is a wasteful number, since it uses less digits than its factorization.

23457070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 23457070 is about 4843.2499419295. The cubic root of 23457070 is about 286.2581902400.

The spelling of 23457070 in words is "twenty-three million, four hundred fifty-seven thousand, seventy".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 149 173 182 298 346 455 745 865 910 1043 1211 1490 1730 1937 2086 2249 2422 3874 4498 5215 6055 9685 10430 11245 12110 13559 15743 19370 22490 25777 27118 31486 51554 67795 78715 128885 135590 157430 180439 257770 335101 360878 670202 902195 1675505 1804390 2345707 3351010 4691414 11728535 23457070