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2155313151402 = 23616787893041
BaseRepresentation
bin11111010111010010101…
…011001011110110101010
321122001020110221102100220
4133113102223023312222
5240303040131321102
64330045344510510
7311500445336445
oct37272253136652
97561213842326
102155313151402
117610770a3254
122a986a01b436
131283257c62a8
1476463b3a65c
153b0e826e1bc
hex1f5d2acbdaa

2155313151402 has 32 divisors (see below), whose sum is σ = 4446684780864. Its totient is φ = 696112876800.

The previous prime is 2155313151391. The next prime is 2155313151413. The reversal of 2155313151402 is 2041513135512.

It is an interprime number because it is at equal distance from previous prime (2155313151391) and next prime (2155313151413).

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, 43921999 + ... + 43971042.

It is an arithmetic number, because the mean of its divisors is an integer number (138958899402).

Almost surely, 22155313151402 is an apocalyptic number.

2155313151402 is an abundant number, since it is smaller than the sum of its proper divisors (2291371629462).

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

2155313151402 is a wasteful number, since it uses less digits than its factorization.

2155313151402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87893174.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 2155313151402 its reverse (2041513135512), we get a palindrome (4196826286914).

The spelling of 2155313151402 in words is "two trillion, one hundred fifty-five billion, three hundred thirteen million, one hundred fifty-one thousand, four hundred two".

Divisors: 1 2 3 6 61 67 122 134 183 201 366 402 4087 8174 12261 24522 87893041 175786082 263679123 527358246 5361475501 5888833747 10722951002 11777667494 16084426503 17666501241 32168853006 35333002482 359218858567 718437717134 1077656575701 2155313151402