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142051545140 = 225131199272453
BaseRepresentation
bin1000010001001011101…
…1101001000000110100
3111120122211001011121112
42010102323221000310
54311410143421030
6145131345334152
713156112132321
oct2042273510064
9446584034545
10142051545140
115527543739a
1223644937358
131051a915b2b
146c37ca3b48
153a65db6a95
hex2112ee9034

142051545140 has 48 divisors (see below), whose sum is σ = 302096995200. Its totient is φ = 56103315840.

The previous prime is 142051545049. The next prime is 142051545157. The reversal of 142051545140 is 41545150241.

It is a happy number.

It is a super-2 number, since 2×1420515451402 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142051545097 and 142051545106.

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, 385154 + ... + 657606.

It is an arithmetic number, because the mean of its divisors is an integer number (6293687400).

Almost surely, 2142051545140 is an apocalyptic number.

142051545140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142051545140 is an abundant number, since it is smaller than the sum of its proper divisors (160045450060).

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

142051545140 is a wasteful number, since it uses less digits than its factorization.

142051545140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272792 (or 272790 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 142051545140 its reverse (41545150241), we get a palindrome (183596695381).

The spelling of 142051545140 in words is "one hundred forty-two billion, fifty-one million, five hundred forty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 131 199 262 398 524 655 796 995 1310 1990 2620 3980 26069 52138 104276 130345 260690 272453 521380 544906 1089812 1362265 2724530 5449060 35691343 54218147 71382686 108436294 142765372 178456715 216872588 271090735 356913430 542181470 713826860 1084362940 7102577257 14205154514 28410309028 35512886285 71025772570 142051545140