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1371970140 = 223552143889
BaseRepresentation
bin101000111000110…
…1001101001011100
310112121121022012220
41101301221221130
510302211021030
6344050025340
745666360642
oct12161515134
93477538186
101371970140
11644494522
12323578250
1318b316468
14d02d7192
15806a9a10
hex51c69a5c

1371970140 has 48 divisors (see below), whose sum is σ = 3848977440. Its totient is φ = 365148160.

The previous prime is 1371970139. The next prime is 1371970181. The reversal of 1371970140 is 410791731.

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, 9316 + ... + 53204.

It is an arithmetic number, because the mean of its divisors is an integer number (80187030).

Almost surely, 21371970140 is an apocalyptic number.

1371970140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1371970140 is an abundant number, since it is smaller than the sum of its proper divisors (2477007300).

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

1371970140 is a wasteful number, since it uses less digits than its factorization.

1371970140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44422 (or 44420 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 1371970140 is about 37040.1152805981. The cubic root of 1371970140 is about 1111.1726751296.

The spelling of 1371970140 in words is "one billion, three hundred seventy-one million, nine hundred seventy thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 521 1042 1563 2084 2605 3126 5210 6252 7815 10420 15630 31260 43889 87778 131667 175556 219445 263334 438890 526668 658335 877780 1316670 2633340 22866169 45732338 68598507 91464676 114330845 137197014 228661690 274394028 342992535 457323380 685985070 1371970140