Search a number
-
+
1237404648380 = 2253141259318773
BaseRepresentation
bin10010000000011011000…
…100001000001110111100
311101021221212011010100212
4102000123010020032330
5130233201042222010
62344242244011552
7155254016653025
oct22003304101674
94337855133325
101237404648380
1143786473503a
1217b998390bb8
138c8c0a64044
1443c68143c4c
15222c390e505
hex1201b1083bc

1237404648380 has 96 divisors (see below), whose sum is σ = 2749003826688. Its totient is φ = 467107430400.

The previous prime is 1237404648377. The next prime is 1237404648407. The reversal of 1237404648380 is 838464047321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65904674 + ... + 65923446.

It is an arithmetic number, because the mean of its divisors is an integer number (28635456528).

Almost surely, 21237404648380 is an apocalyptic number.

1237404648380 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 1237404648380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1374501913344).

1237404648380 is an abundant number, since it is smaller than the sum of its proper divisors (1511599178308).

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

1237404648380 is a wasteful number, since it uses less digits than its factorization.

1237404648380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21447 (or 21445 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 50.

The spelling of 1237404648380 in words is "one trillion, two hundred thirty-seven billion, four hundred four million, six hundred forty-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 31 41 62 82 124 155 164 205 310 410 620 820 1271 2542 2593 5084 5186 6355 10372 12710 12965 18773 25420 25930 37546 51860 75092 80383 93865 106313 160766 187730 212626 321532 375460 401915 425252 531565 581963 769693 803830 1063130 1163926 1539386 1607660 2126260 2327852 2909815 3078772 3295703 3848465 5819630 6591406 7696930 11639260 13182812 15393860 16478515 23860483 32957030 47720966 48678389 65914060 95441932 97356778 119302415 194713556 238604830 243391945 477209660 486783890 973567780 1509030059 1995813949 3018060118 3991627898 6036120236 7545150295 7983255796 9979069745 15090300590 19958139490 30180601180 39916278980 61870232419 123740464838 247480929676 309351162095 618702324190 1237404648380