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155352030442 = 2779178378779
BaseRepresentation
bin1001000010101110110…
…0111101110011101010
3112211222202020211102021
42100223230331303222
510021130104433232
6155211233055054
714136524320360
oct2205354756352
9484882224367
10155352030442
115a980197904
12261370b748a
131185a32548b
14773a4cb630
1540938c1397
hex242bb3dcea

155352030442 has 32 divisors (see below), whose sum is σ = 269843558400. Its totient is φ = 65698961328.

The previous prime is 155352030437. The next prime is 155352030469. The reversal of 155352030442 is 244030253551.

It is a junction number, because it is equal to n+sod(n) for n = 155352030398 and 155352030407.

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, 1932609 + ... + 2011387.

It is an arithmetic number, because the mean of its divisors is an integer number (8432611200).

Almost surely, 2155352030442 is an apocalyptic number.

155352030442 is a deficient number, since it is larger than the sum of its proper divisors (114491527958).

155352030442 is a wasteful number, since it uses less digits than its factorization.

155352030442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80650.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 155352030442 its reverse (244030253551), we get a palindrome (399382283993).

The spelling of 155352030442 in words is "one hundred fifty-five billion, three hundred fifty-two million, thirty thousand, four hundred forty-two".

Divisors: 1 2 7 14 79 158 553 1106 1783 3566 12481 24962 78779 140857 157558 281714 551453 985999 1102906 1971998 6223541 12447082 43564787 87129574 140462957 280925914 983240699 1966481398 11096573603 22193147206 77676015221 155352030442