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1972753218275 = 52759792418553
BaseRepresentation
bin11100101101010001010…
…000010011101011100011
320222121000120012221001012
4130231101100103223203
5224310144310441100
64110134215531135
7262345443452450
oct34552120235343
96877016187035
101972753218275
116a0704842464
1227a3bb089aab
131140506c9c18
146b6a5d6c827
15364b0e4c135
hex1cb51413ae3

1972753218275 has 48 divisors (see below), whose sum is σ = 2879046681600. Its totient is φ = 1312983509760.

The previous prime is 1972753218257. The next prime is 1972753218287. The reversal of 1972753218275 is 5728123572791.

It is a happy number.

It is not a de Polignac number, because 1972753218275 - 26 = 1972753218211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 393602 + ... + 2024951.

It is an arithmetic number, because the mean of its divisors is an integer number (59980139200).

Almost surely, 21972753218275 is an apocalyptic number.

1972753218275 is a deficient number, since it is larger than the sum of its proper divisors (906293463325).

1972753218275 is a wasteful number, since it uses less digits than its factorization.

1972753218275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418708 (or 2418703 counting only the distinct ones).

The product of its digits is 14817600, while the sum is 59.

The spelling of 1972753218275 in words is "one trillion, nine hundred seventy-two billion, seven hundred fifty-three million, two hundred eighteen thousand, two hundred seventy-five".

Divisors: 1 5 7 25 35 59 79 175 295 395 413 553 1475 1975 2065 2765 4661 10325 13825 23305 32627 116525 163135 815675 2418553 12092765 16929871 60463825 84649355 142694627 191065687 423246775 713473135 955328435 998862389 1337459809 3567365675 4776642175 4994311945 6687299045 11272875533 24971559725 33436495225 56364377665 78910128731 281821888325 394550643655 1972753218275