Search a number
-
+
145258708 = 22723593823
BaseRepresentation
bin10001010100001…
…11100011010100
3101010022220111011
420222013203110
5244141234313
622225222004
73412451530
oct1052074324
9333286434
10145258708
1174aa4021
1240791904
132412baca
1415412bc0
15cb4493d
hex8a878d4

145258708 has 48 divisors (see below), whose sum is σ = 308367360. Its totient is φ = 58522464.

The previous prime is 145258697. The next prime is 145258721. The reversal of 145258708 is 807852541.

It is a super-2 number, since 2×1452587082 = 42200184499658528, which contains 22 as substring.

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, 36085 + ... + 39907.

It is an arithmetic number, because the mean of its divisors is an integer number (6424320).

Almost surely, 2145258708 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 145258708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154183680).

145258708 is an abundant number, since it is smaller than the sum of its proper divisors (163108652).

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

145258708 is a wasteful number, since it uses less digits than its factorization.

145258708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916 (or 3914 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 145258708 is about 12052.3320564943. The cubic root of 145258708 is about 525.6710487862.

The spelling of 145258708 in words is "one hundred forty-five million, two hundred fifty-eight thousand, seven hundred eight".

Divisors: 1 2 4 7 14 23 28 46 59 92 118 161 236 322 413 644 826 1357 1652 2714 3823 5428 7646 9499 15292 18998 26761 37996 53522 87929 107044 175858 225557 351716 451114 615503 902228 1231006 1578899 2462012 3157798 5187811 6315596 10375622 20751244 36314677 72629354 145258708