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1431418680 = 233256165183
BaseRepresentation
bin101010101010001…
…1011011100111000
310200202110121021200
41111110123130320
510412420344210
6354012134200
750320600206
oct12524333470
93622417250
101431418680
11674aa904a
1233b467360
1319a72c403
14d8170076
15859ee0c0
hex5551b738

1431418680 has 96 divisors (see below), whose sum is σ = 4728447360. Its totient is φ = 375448320.

The previous prime is 1431418673. The next prime is 1431418687. The reversal of 1431418680 is 868141341.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1431418673) and next prime (1431418687).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431418687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10632 + ... + 54551.

It is an arithmetic number, because the mean of its divisors is an integer number (49254660).

Almost surely, 21431418680 is an apocalyptic number.

1431418680 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 1431418680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2364223680).

1431418680 is an abundant number, since it is smaller than the sum of its proper divisors (3297028680).

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

1431418680 is a wasteful number, since it uses less digits than its factorization.

1431418680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65261 (or 65254 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1431418680 is about 37834.0941480036. The cubic root of 1431418680 is about 1126.9956164387.

The spelling of 1431418680 in words is "one billion, four hundred thirty-one million, four hundred eighteen thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 61 72 90 120 122 180 183 244 305 360 366 488 549 610 732 915 1098 1220 1464 1830 2196 2440 2745 3660 4392 5490 7320 10980 21960 65183 130366 195549 260732 325915 391098 521464 586647 651830 782196 977745 1173294 1303660 1564392 1955490 2346588 2607320 2933235 3910980 3976163 4693176 5866470 7821960 7952326 11732940 11928489 15904652 19880815 23465880 23856978 31809304 35785467 39761630 47713956 59642445 71570934 79523260 95427912 119284890 143141868 159046520 178927335 238569780 286283736 357854670 477139560 715709340 1431418680