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1942153740 = 2233547591297
BaseRepresentation
bin111001111000010…
…1110101000001100
312000100111122002000
41303300232220030
512434142404430
6520415032300
766062014542
oct16360565014
95010448060
101942153740
1190732793a
1246250b690
1324c4a27c7
14145d1bd92
15b5787e60
hex73c2ea0c

1942153740 has 192 divisors, whose sum is σ = 6280243200. Its totient is φ = 497912832.

The previous prime is 1942153739. The next prime is 1942153757. The reversal of 1942153740 is 473512491.

It is a super-2 number, since 2×19421537402 = 7543922299591975200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1942153695 and 1942153704.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1496772 + ... + 1498068.

It is an arithmetic number, because the mean of its divisors is an integer number (32709600).

Almost surely, 21942153740 is an apocalyptic number.

1942153740 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 1942153740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3140121600).

1942153740 is an abundant number, since it is smaller than the sum of its proper divisors (4338089460).

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

1942153740 is a wasteful number, since it uses less digits than its factorization.

1942153740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421 (or 1413 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1942153740 is about 44069.8733830720. The cubic root of 1942153740 is about 1247.6550683204.

The spelling of 1942153740 in words is "one billion, nine hundred forty-two million, one hundred fifty-three thousand, seven hundred forty".