Search a number
-
+
2057901901 = 111773233647
BaseRepresentation
bin111101010101001…
…0001011101001101
312022102022020200221
41322222101131031
513203310330101
6540111551341
7101665606666
oct17252213515
95272266627
102057901901
119666a5180
1249522b551
1326a46b343
1415744c36d
15c09edaa1
hex7aa9174d

2057901901 has 32 divisors (see below), whose sum is σ = 2423685888. Its totient is φ = 1726525440.

The previous prime is 2057901893. The next prime is 2057901907. The reversal of 2057901901 is 1091097502.

It is not a de Polignac number, because 2057901901 - 23 = 2057901893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057901907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3180360 + ... + 3181006.

It is an arithmetic number, because the mean of its divisors is an integer number (75740184).

Almost surely, 22057901901 is an apocalyptic number.

It is an amenable number.

2057901901 is a deficient number, since it is larger than the sum of its proper divisors (365783987).

2057901901 is a wasteful number, since it uses less digits than its factorization.

2057901901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 2057901901 is about 45364.1036613753. The cubic root of 2057901901 is about 1271.9642040363.

The spelling of 2057901901 in words is "two billion, fifty-seven million, nine hundred one thousand, nine hundred one".

Divisors: 1 11 17 73 187 233 647 803 1241 2563 3961 7117 10999 13651 17009 43571 47231 120989 150751 187099 289153 519541 802927 1658261 2562767 3180683 8832197 11004823 28190437 121053053 187081991 2057901901