Search a number
-
+
1371019020 = 22357431307
BaseRepresentation
bin101000110111000…
…0001011100001100
310112112210222112020
41101232001130030
510301440102040
6344013410140
745655320000
oct12156013414
93475728466
101371019020
116439a4978
12323199950
1318b072577
14d012a700
158056ccd0
hex51b8170c

1371019020 has 240 divisors, whose sum is σ = 4637918208. Its totient is φ = 302279040.

The previous prime is 1371019007. The next prime is 1371019021. The reversal of 1371019020 is 209101731.

It is not an unprimeable number, because it can be changed into a prime (1371019021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4465707 + ... + 4466013.

Almost surely, 21371019020 is an apocalyptic number.

1371019020 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 1371019020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2318959104).

1371019020 is an abundant number, since it is smaller than the sum of its proper divisors (3266899188).

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

1371019020 is a wasteful number, since it uses less digits than its factorization.

1371019020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 1371019020 is about 37027.2740017409. The cubic root of 1371019020 is about 1110.9158418257.

The spelling of 1371019020 in words is "one billion, three hundred seventy-one million, nineteen thousand, twenty".