Search a number
-
+
156920000 = 26543923
BaseRepresentation
bin10010101101001…
…10100011000000
3101221021100202212
421112212203000
5310132420000
623323201252
73613540466
oct1126464300
9357240685
10156920000
1180639356
1244676228
1326682893
1416baa836
15db99c35
hex95a68c0

156920000 has 70 divisors (see below), whose sum is σ = 389209788. Its totient is φ = 62752000.

The previous prime is 156919969. The next prime is 156920003. The reversal of 156920000 is 29651.

It is not an unprimeable number, because it can be changed into a prime (156920003) 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 9 ways as a sum of consecutive naturals, for example, 38039 + ... + 41961.

Almost surely, 2156920000 is an apocalyptic number.

156920000 is a gapful number since it is divisible by the number (10) 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 156920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194604894).

156920000 is an abundant number, since it is smaller than the sum of its proper divisors (232289788).

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

156920000 is an frugal number, since it uses more digits than its factorization.

156920000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955 (or 3930 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 156920000 is about 12526.7713318317. The cubic root of 156920000 is about 539.3774260769.

Adding to 156920000 its reverse (29651), we get a palindrome (156949651).

The spelling of 156920000 in words is "one hundred fifty-six million, nine hundred twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 625 800 1000 1250 1600 2000 2500 3923 4000 5000 7846 8000 10000 15692 19615 20000 31384 39230 40000 62768 78460 98075 125536 156920 196150 251072 313840 392300 490375 627680 784600 980750 1255360 1569200 1961500 2451875 3138400 3923000 4903750 6276800 7846000 9807500 15692000 19615000 31384000 39230000 78460000 156920000