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142549097070 = 23531977156887
BaseRepresentation
bin1000010011000010010…
…1101001101001101110
3111121221111021102112210
42010300211221221232
54313420032101240
6145253001511250
713204333222122
oct2046045515156
9447844242483
10142549097070
1155500281536
12237634a2526
1310599a21863
146c83dbd582
153a948e9780
hex2130969a6e

142549097070 has 64 divisors (see below), whose sum is σ = 353517613056. Its totient is φ = 36748976640.

The previous prime is 142549097059. The next prime is 142549097077. The reversal of 142549097070 is 70790945241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142549097077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 830167 + ... + 987053.

It is an arithmetic number, because the mean of its divisors is an integer number (5523712704).

Almost surely, 2142549097070 is an apocalyptic number.

142549097070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142549097070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176758806528).

142549097070 is an abundant number, since it is smaller than the sum of its proper divisors (210968515986).

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

142549097070 is a wasteful number, since it uses less digits than its factorization.

142549097070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157905.

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 142549097070 in words is "one hundred forty-two billion, five hundred forty-nine million, ninety-seven thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 977 1954 2931 4885 5862 9770 14655 29310 30287 60574 90861 151435 156887 181722 302870 313774 454305 470661 784435 908610 941322 1568870 2353305 4706610 4863497 9726994 14590491 24317485 29180982 48634970 72952455 145904910 153278599 306557198 459835797 766392995 919671594 1532785990 2299178985 4598357970 4751636569 9503273138 14254909707 23758182845 28509819414 47516365690 71274548535 142549097070